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873697-71-3

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873697-71-3 Usage

Description

Omecamtiv mecarbil (CK-1827452) is a specific cardiac myosin activator and a clinical drug for left ventricular systolic heart failure. Phase 2.

In vitro

In vitro, Omecamtiv mecarbil selectively activates cardiac myosin by increasing the myosin ATPase rate. In isolated cardiac myocytes, Omecamtiv mecarbil results in increase of myocyte contractility and overcomes of the myosin inhibitor BDM without increasing the calcium transient or inhibiting the PDE pathway. [

In vivo

Omecamtiv mecarbil significantly increases fractional shortening starting at 0.4 mM plasma concentrations in SD rats, sham animals and in rats with heart failure. In conscious dogs with myocardial infarction (MI-sHF), Omecamtiv mecarbil leads to a significant increase in wall thickening (25%), stroke volume (44%), cardiac output (22%) and left ventricular (LV) systolic ejection time (26%). In addition, Omecamtiv mecarbil also results in the decreases of some hemodynamic parameters including heart rate, mean left atrial pressure, and LV end-diastolic pressure. In conscious dogs with left ventricular hypertrophy (LVH-sHF), Omecamtiv mecarbil leads to similar and not statistically different effects on hemodynamic parameters.

Uses

Different sources of media describe the Uses of 873697-71-3 differently. You can refer to the following data:
1. CK 1827452 is a promising new drug in systolic heart failure. It accelerates the transition of myosin into the force-generating state without affecting cardiac myocyte calcium homeostasis. CK 1827452 increases cardiac function by increasing the duration of ejection without changing the rates of contraction.
2. CK 1827452 is a promising new drug in systolic heart failure. It accelerates the transition of myosin into the force-generating state without affecting cardiac myocyte calcium homeostasis. CK 1827452 increases cardiac function by increasing the duration of ejection without changing the rates of contraction.

Biological Activity

omecamtiv mecarbil (ck-1827452) is the first potent cardiac myosin activator that can specifically activate the cardiac myosin s1 domain but not other muscle myosins. in

references

1. malik fi1, hartman jj, elias ka, morgan bp, rodriguez h, brejc k, anderson rl, sueoka sh, lee kh, finer jt, sakowicz r, baliga r, cox dr, garard m,godinez g, kawas r, kraynack e, lenzi d, lu pp, muci a, niu c, qian x, pierce dw, pokrovskii m, suehiro i, sylvester s, tochimoto t, valdez c, wang w,katori t, kass da, shen yt, vatner sf, morgans dj. cardiac myosin activation: a potential therapeutic approach for systolic heart failure. science. 2011 mar 18;331(6023):1439-43.

Check Digit Verification of cas no

The CAS Registry Mumber 873697-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,3,6,9 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 873697-71:
(8*8)+(7*7)+(6*3)+(5*6)+(4*9)+(3*7)+(2*7)+(1*1)=233
233 % 10 = 3
So 873697-71-3 is a valid CAS Registry Number.

873697-71-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name methyl 4-[[2-fluoro-3-[(6-methylpyridin-3-yl)carbamoylamino]phenyl]methyl]piperazine-1-carboxylate

1.2 Other means of identification

Product number -
Other names methyl 4-(2-fluoro-5-(3-(6-methylpyridin-3-yl)ureido)benzyl)piperazine-1-carboxylate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:873697-71-3 SDS

873697-71-3Synthetic route

5-isocyanato-2-methylpyridine
732245-99-7

5-isocyanato-2-methylpyridine

methyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate
873697-70-2

methyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
In acetone at 20℃; Heating/reflux;86%
In acetone at 20℃; Heating / reflux;86%
In acetone at 20℃; for 6.65h; Heating / reflux;86%
In acetone at 20℃; Heating / reflux;73%
In acetone for 6.5h; Heating / reflux;73%
methyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate
873697-70-2

methyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate

phenyl (6-methylpyridin-3-yl)carbamate hydrochloride
1628206-34-7

phenyl (6-methylpyridin-3-yl)carbamate hydrochloride

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In tetrahydrofuran; acetonitrile at 57℃; for 21h; Industrial scale;82%
With N-ethyl-N,N-diisopropylamine In acetonitrile at 55℃; for 18h;47 g
5-Amino-2-methylpyridine
80287-53-2, 3430-14-6

5-Amino-2-methylpyridine

C20H22FN3O4

C20H22FN3O4

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
In toluene at 80℃; for 15h; Inert atmosphere;81%
methyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate
873697-70-2

methyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate

C13H12N2O2*(x)ClH

C13H12N2O2*(x)ClH

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In tetrahydrofuran; acetonitrile80%
5-isocyanato-2-methylpyridine
732245-99-7

5-isocyanato-2-methylpyridine

tert-butyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate
942224-53-5

tert-butyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
In acetone at 20℃; for 5.65h; Heating / reflux;73%
5-bromo-2-methylpyridine
3430-13-5

5-bromo-2-methylpyridine

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: t-BuBrettPhos; palladium diacetate; caesium carbonate / tetrahydrofuran; water / 2 h / 85 °C / Inert atmosphere
2: hydrogenchloride; palladium on carbon; hydrogen / methanol; water / 20 h / 20 °C / 760.05 Torr
3: t-BuBrettPhos; palladium diacetate; caesium carbonate / tetrahydrofuran; water / Inert atmosphere; Heating
View Scheme
1-(bromomethyl)-3-chloro-2-fluorobenzene

1-(bromomethyl)-3-chloro-2-fluorobenzene

methyl piperazine-1-carboxylate
50606-31-0

methyl piperazine-1-carboxylate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 1.25 h / 20 °C / Inert atmosphere
2: t-BuBrettPhos; palladium diacetate; caesium carbonate / tetrahydrofuran; water / Inert atmosphere; Heating
View Scheme
C14H15N3O

C14H15N3O

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: hydrogenchloride; palladium on carbon; hydrogen / methanol; water / 20 h / 20 °C / 760.05 Torr
2: t-BuBrettPhos; palladium diacetate; caesium carbonate / tetrahydrofuran; water / Inert atmosphere; Heating
View Scheme
(2-methylpyridin-5-yl)urea
1309439-44-8

(2-methylpyridin-5-yl)urea

methyl 4-(3-chloro-2-fluorobenzyl)piperazine-1-carboxylate
1309439-45-9

methyl 4-(3-chloro-2-fluorobenzyl)piperazine-1-carboxylate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
With t-BuBrettPhos; palladium diacetate; caesium carbonate In tetrahydrofuran; water Inert atmosphere; Heating;253 mg
1-(bromomethyl)-3-chloro-2-fluorobenzene

1-(bromomethyl)-3-chloro-2-fluorobenzene

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 6 h / 20 °C / Inert atmosphere
2: tris-(dibenzylideneacetone)dipalladium(0); t-BuBrettPhos; triethylamine / toluene / 16 h / 120 °C / Inert atmosphere
3: toluene / 15 h / 80 °C / Inert atmosphere
View Scheme
methyl piperazine-1-carboxylate
50606-31-0

methyl piperazine-1-carboxylate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 6 h / 20 °C / Inert atmosphere
2: tris-(dibenzylideneacetone)dipalladium(0); t-BuBrettPhos; triethylamine / toluene / 16 h / 120 °C / Inert atmosphere
3: toluene / 15 h / 80 °C / Inert atmosphere
View Scheme
Multi-step reaction with 4 steps
1: phosphoric acid / water; tert-butyl methyl ether / 6 h / 20 - 40 °C / Industrial scale
2: N-ethyl-N,N-diisopropylamine; sodium hydroxide / toluene; methanol / 7.5 h / 25 - 40 °C / Inert atmosphere; Industrial scale
3: hydrogen; 0.7% Pd/C / 5 h / 15 °C / 3102.97 Torr
4: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
Multi-step reaction with 4 steps
1: phosphoric acid / water; tert-butyl methyl ether / 6 h / 20 - 40 °C / Industrial scale
2: N-ethyl-N,N-diisopropylamine; sodium hydroxide / toluene; methanol / 7.5 h / 25 - 40 °C / Inert atmosphere; Industrial scale
3: hydrogen; 5%-palladium/activated carbon / water; toluene; ethanol / 10 - 15 °C / 3102.97 Torr / Industrial scale
4: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
methyl 4-(3-chloro-2-fluorobenzyl)piperazine-1-carboxylate
1309439-45-9

methyl 4-(3-chloro-2-fluorobenzyl)piperazine-1-carboxylate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: tris-(dibenzylideneacetone)dipalladium(0); t-BuBrettPhos; triethylamine / toluene / 16 h / 120 °C / Inert atmosphere
2: toluene / 15 h / 80 °C / Inert atmosphere
View Scheme
5-Amino-2-methylpyridine
80287-53-2, 3430-14-6

5-Amino-2-methylpyridine

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: acetonitrile / 7 h / 20 °C
2: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran
View Scheme
2-methyl-5-nitropyridine
21203-68-9

2-methyl-5-nitropyridine

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: hydrogen; 5%-palladium/activated carbon / 50 - 60 °C / 3375.34 Torr
2: acetonitrile / 7 h / 20 °C
3: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran
View Scheme
2-fluoro-3-nitrotoluene
437-86-5

2-fluoro-3-nitrotoluene

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: N-Bromosuccinimide; dibenzoyl peroxide; acetic acid / 8 h / 83 °C
1.2: 3 h / 40 °C
2.1: sodium hydroxide / water; toluene / 1 h / 20 °C
2.2: 15 °C / 3000.3 Torr
3.1: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran
View Scheme
Multi-step reaction with 4 steps
1.1: N-Bromosuccinimide; dibenzoyl peroxide; acetic acid; sodium hydroxide / water / 18.5 h / 83 °C / Inert atmosphere; Industrial scale
1.2: 7.5 h / 40 °C / Industrial scale
2.1: N-ethyl-N,N-diisopropylamine; sodium hydroxide / toluene; methanol / 7.5 h / 25 - 40 °C / Inert atmosphere; Industrial scale
3.1: hydrogen; 0.7% Pd/C / 5 h / 15 °C / 3102.97 Torr
4.1: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
Multi-step reaction with 4 steps
1.1: N-Bromosuccinimide; dibenzoyl peroxide; acetic acid; sodium hydroxide / water / 18.5 h / 83 °C / Inert atmosphere; Industrial scale
1.2: 7.5 h / 40 °C / Industrial scale
2.1: N-ethyl-N,N-diisopropylamine; sodium hydroxide / toluene; methanol / 7.5 h / 25 - 40 °C / Inert atmosphere; Industrial scale
3.1: hydrogen; 5%-palladium/activated carbon / water; toluene; ethanol / 10 - 15 °C / 3102.97 Torr / Industrial scale
4.1: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
Multi-step reaction with 4 steps
1: N-Bromosuccinimide; dibenzoyl peroxide; acetic acid; sodium hydroxide / water / 18.5 h / 83 °C / Inert atmosphere; Industrial scale
2: N-ethyl-N,N-diisopropylamine; sodium hydroxide / toluene; methanol / 7.5 h / 25 - 40 °C / Inert atmosphere; Industrial scale
3: hydrogen; 0.7% Pd/C / 5 h / 15 °C / 3102.97 Torr
4: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
Multi-step reaction with 4 steps
1: N-Bromosuccinimide; dibenzoyl peroxide; acetic acid; sodium hydroxide / water / 18.5 h / 83 °C / Inert atmosphere; Industrial scale
2: N-ethyl-N,N-diisopropylamine; sodium hydroxide / toluene; methanol / 7.5 h / 25 - 40 °C / Inert atmosphere; Industrial scale
3: hydrogen; 5%-palladium/activated carbon / water; toluene; ethanol / 10 - 15 °C / 3102.97 Torr / Industrial scale
4: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
methyl 4-(2-fluoro-3-nitrobenzyl)piperazine-1-carboxylate hydrochloride

methyl 4-(2-fluoro-3-nitrobenzyl)piperazine-1-carboxylate hydrochloride

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium hydroxide / water; toluene / 1 h / 20 °C
1.2: 15 °C / 3000.3 Torr
2.1: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran
View Scheme
piperazine methyl carboxylate hemiphosphate hemihydrate

piperazine methyl carboxylate hemiphosphate hemihydrate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: N-Bromosuccinimide; dibenzoyl peroxide; acetic acid / 8 h / 83 °C
1.2: 3 h / 40 °C
2.1: sodium hydroxide / water; toluene / 1 h / 20 °C
2.2: 15 °C / 3000.3 Torr
3.1: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran
View Scheme
methyl 4-(2-fluoro-3-nitrobenzyl)piperazine-1-carboxylate

methyl 4-(2-fluoro-3-nitrobenzyl)piperazine-1-carboxylate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: hydrogen; 5%-palladium/activated carbon / water; toluene; ethanol / 10 - 15 °C / 3102.97 Torr / Industrial scale
2: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
Multi-step reaction with 2 steps
1: hydrogen; 0.7% Pd/C / 5 h / 15 °C / 3102.97 Torr
2: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
methyl 4-(2-fluoro-3-nitrobenzyl)piperazine-1-carboxylate hydrochloride

methyl 4-(2-fluoro-3-nitrobenzyl)piperazine-1-carboxylate hydrochloride

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sodium hydroxide / water; toluene / 0.25 h / Industrial scale
2: hydrogen; 0.7% Pd/C / 5 h / 15 °C / 3102.97 Torr
3: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
Multi-step reaction with 3 steps
1: sodium hydroxide / water; toluene / 0.25 h / Industrial scale
2: hydrogen; 5%-palladium/activated carbon / water; toluene; ethanol / 10 - 15 °C / 3102.97 Torr / Industrial scale
3: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
C6H12N2O2*0.67H3O4P

C6H12N2O2*0.67H3O4P

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: N-ethyl-N,N-diisopropylamine; sodium hydroxide / toluene; methanol / 7.5 h / 25 - 40 °C / Inert atmosphere; Industrial scale
2: hydrogen; 5%-palladium/activated carbon / water; toluene; ethanol / 10 - 15 °C / 3102.97 Torr / Industrial scale
3: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
Multi-step reaction with 3 steps
1: N-ethyl-N,N-diisopropylamine; sodium hydroxide / toluene; methanol / 7.5 h / 25 - 40 °C / Inert atmosphere; Industrial scale
2: hydrogen; 0.7% Pd/C / 5 h / 15 °C / 3102.97 Torr
3: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
1-(bromomethyl)-2-fluoro-3- nitrobenzene
946125-65-1

1-(bromomethyl)-2-fluoro-3- nitrobenzene

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: N-ethyl-N,N-diisopropylamine; sodium hydroxide / toluene; methanol / 7.5 h / 25 - 40 °C / Inert atmosphere; Industrial scale
2: hydrogen; 5%-palladium/activated carbon / water; toluene; ethanol / 10 - 15 °C / 3102.97 Torr / Industrial scale
3: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
Multi-step reaction with 3 steps
1: N-ethyl-N,N-diisopropylamine; sodium hydroxide / toluene; methanol / 7.5 h / 25 - 40 °C / Inert atmosphere; Industrial scale
2: hydrogen; 0.7% Pd/C / 5 h / 15 °C / 3102.97 Torr
3: N-ethyl-N,N-diisopropylamine / acetonitrile; tetrahydrofuran / 21 h / 57 °C / Industrial scale
View Scheme
methyl 3-amino-2-fluoro-benzoate
1195768-18-3

methyl 3-amino-2-fluoro-benzoate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 22.25 h / 0 - 65 °C
2.1: sodium tetrahydroborate; methanol / tetrahydrofuran / 2.5 h / 65 °C
3.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
3.2: 16 h / 0 - 28 °C
View Scheme
Multi-step reaction with 3 steps
1.1: triethylamine / dichloromethane / 1 h / 5 - 28 °C
1.2: 2 h / 28 °C
2.1: sodium tetrahydroborate; methanol / tetrahydrofuran / 2.5 h / 65 °C
3.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
3.2: 16 h / 0 - 28 °C
View Scheme
methyl 2-fluoro-3-(3-(6-methylpyridin-3-yl)ureido)benzoate

methyl 2-fluoro-3-(3-(6-methylpyridin-3-yl)ureido)benzoate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium tetrahydroborate; methanol / tetrahydrofuran / 2.5 h / 65 °C
2.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
2.2: 16 h / 0 - 28 °C
View Scheme
methyl piperazine-1-carboxylate
50606-31-0

methyl piperazine-1-carboxylate

1-(2-fluoro-3-(hydroxymethyl)phenyl)-3-(6-methylpyridin-3-yl)urea

1-(2-fluoro-3-(hydroxymethyl)phenyl)-3-(6-methylpyridin-3-yl)urea

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Stage #1: 1-(2-fluoro-3-(hydroxymethyl)phenyl)-3-(6-methylpyridin-3-yl)urea With methanesulfonyl chloride; triethylamine In dichloromethane at 0 - 28℃; for 3.25h;
Stage #2: methyl piperazine-1-carboxylate With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 0 - 28℃; for 16h;
methyl piperazine-1,3-carboxylate hydrochloride
873697-75-7

methyl piperazine-1,3-carboxylate hydrochloride

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: potassium hydroxide / dichloromethane / 1 h / 30 °C
2.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
2.2: 16 h / 0 - 28 °C
View Scheme
1-(3-cyano-2-fluorophenyl)-3-(6-methylpyridin-3-yl)urea

1-(3-cyano-2-fluorophenyl)-3-(6-methylpyridin-3-yl)urea

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: water; sodium hydroxide / ethanol / 24.42 h / 30 - 100 °C
2.1: thionyl chloride; methanol / 16.17 h / 0 - 65 °C
3.1: sodium tetrahydroborate; methanol / tetrahydrofuran / 2.5 h / 65 °C
4.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
4.2: 16 h / 0 - 28 °C
View Scheme
2-fluoro-3-(3-(6-methylpyridin-3-yl)ureido)benzoic acid

2-fluoro-3-(3-(6-methylpyridin-3-yl)ureido)benzoic acid

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: thionyl chloride; methanol / 16.17 h / 0 - 65 °C
2.1: sodium tetrahydroborate; methanol / tetrahydrofuran / 2.5 h / 65 °C
3.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
3.2: 16 h / 0 - 28 °C
View Scheme
5-Amino-2-methylpyridine
80287-53-2, 3430-14-6

5-Amino-2-methylpyridine

methyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate
873697-70-2

methyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate

bis(trichloromethyl) carbonate
32315-10-9

bis(trichloromethyl) carbonate

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Stage #1: methyl 4-(3-amino-2-fluorobenzyl)piperazine-1-carboxylate; bis(trichloromethyl) carbonate With triethylamine In dichloromethane at 5 - 28℃; for 1h;
Stage #2: 5-Amino-2-methylpyridine In dichloromethane at 28℃; for 2h;
3-amino-2-fluorobenzonitrile
873697-68-8

3-amino-2-fluorobenzonitrile

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 22 h / 0 - 65 °C
2.1: water; sodium hydroxide / ethanol / 24.42 h / 30 - 100 °C
3.1: thionyl chloride; methanol / 16.17 h / 0 - 65 °C
4.1: sodium tetrahydroborate; methanol / tetrahydrofuran / 2.5 h / 65 °C
5.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
5.2: 16 h / 0 - 28 °C
View Scheme
Multi-step reaction with 5 steps
1.1: water; sodium hydroxide / 14 h / 30 - 100 °C
2.1: thionyl chloride / 16.5 h / 0 - 65 °C
3.1: triethylamine / dichloromethane / 1 h / 5 - 28 °C
3.2: 2 h / 28 °C
4.1: sodium tetrahydroborate; methanol / tetrahydrofuran / 2.5 h / 65 °C
5.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
5.2: 16 h / 0 - 28 °C
View Scheme
Multi-step reaction with 5 steps
1.1: water; sodium hydroxide / 14 h / 30 - 100 °C
2.1: thionyl chloride / 16.5 h / 0 - 65 °C
3.1: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 22.25 h / 0 - 65 °C
4.1: sodium tetrahydroborate; methanol / tetrahydrofuran / 2.5 h / 65 °C
5.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
5.2: 16 h / 0 - 28 °C
View Scheme
3-amino-2-fluoro benzoic acid
914223-43-1

3-amino-2-fluoro benzoic acid

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: thionyl chloride / 16.5 h / 0 - 65 °C
2.1: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 22.25 h / 0 - 65 °C
3.1: sodium tetrahydroborate; methanol / tetrahydrofuran / 2.5 h / 65 °C
4.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
4.2: 16 h / 0 - 28 °C
View Scheme
Multi-step reaction with 4 steps
1.1: thionyl chloride / 16.5 h / 0 - 65 °C
2.1: triethylamine / dichloromethane / 1 h / 5 - 28 °C
2.2: 2 h / 28 °C
3.1: sodium tetrahydroborate; methanol / tetrahydrofuran / 2.5 h / 65 °C
4.1: methanesulfonyl chloride; triethylamine / dichloromethane / 3.25 h / 0 - 28 °C
4.2: 16 h / 0 - 28 °C
View Scheme
methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

C20H24FN5O3*2H2O4S

C20H24FN5O3*2H2O4S

Conditions
ConditionsYield
With hydrogenchloride; sulfuric acid In tetrahydrofuran; methanol at 50℃; for 4h;
methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

C20H24FN5O3*(x)H2O4S

C20H24FN5O3*(x)H2O4S

Conditions
ConditionsYield
With sulfuric acid In acetone
methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

ethanesulfonic acid
594-45-6

ethanesulfonic acid

(x)C2H6O3S*C20H24FN5O3

(x)C2H6O3S*C20H24FN5O3

Conditions
ConditionsYield
In tetrahydrofuran; acetone
methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

(2E)-but-2-enedioic acid
110-17-8

(2E)-but-2-enedioic acid

omecamtiv mecarbil fumaric acid salt

omecamtiv mecarbil fumaric acid salt

Conditions
ConditionsYield
With hydrogenchloride In methanol; hexane; water; acetone; acetonitrile at 50℃; for 4h;
In tetrahydrofuran at 65℃;
methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

maleic acid
110-16-7

maleic acid

omecamtiv mecarbil maleic acid salt

omecamtiv mecarbil maleic acid salt

Conditions
ConditionsYield
With hydrogenchloride In methanol; water; acetone at 50℃; for 4h; Temperature;
In methanol at 65℃; Solvent; Temperature;
methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

malonic acid
141-82-2

malonic acid

C20H24FN5O3*2C3H4O4

C20H24FN5O3*2C3H4O4

Conditions
ConditionsYield
In methanol at 50℃;
methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate
873697-71-3

methyl 4-[(2-fluoro-3-{[(6-methylpyridin-3-yl)carbamoyl]amino}phenyl)methyl]piperazine-1-carboxylate

methanesulfonic acid
75-75-2

methanesulfonic acid

(x)CH4O3S*C20H24FN5O3

(x)CH4O3S*C20H24FN5O3

Conditions
ConditionsYield
In methanol at 50℃;

873697-71-3Downstream Products

873697-71-3Relevant articles and documents

ALTERNATE PROCESSES FOR THE PREPARATION OF OMECAMTIV MECARBIL

-

, (2021/04/17)

Aspects of the present application relate to process for the preparation of Omecamtiv mecarbil and salts thereof. Specific aspects relate to novel urea intermediate, preparative process thereof and its use in the preparation of Omecamtiv mecarbil and salts thereof. The improved process for the preparation of Omecamtiv mecarbil are industrially viable.

SYNTHESIS OF OMECAMTIV MECARBIL

-

, (2019/01/17)

Provided herein is a synthesis for omecamtiv mecarbil dihydrochloride hydrate and various intermediates. (I)

Synthesis of unsymmetrical diarylureas via Pd-catalyzed C-N cross-coupling reactions

Breitler, Simon,Oldenhuis, Nathan J.,Fors, Brett P.,Buchwald, Stephen L.

supporting information; experimental part, p. 3262 - 3265 (2011/08/07)

A facile synthesis of unsymmetrical N,N′-diarylureas is described. The utilization of the Pd-catalyzed arylation of ureas enables the synthesis of an array of diarylureas in good to excellent yields from benzylurea via a one-pot arylation-deprotection protocol, followed by a second arylation.

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