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1809249-37-3

Basic Information
CAS No.: 1809249-37-3
Name: Remdesivir
Article Data: 21
Cas Database
Molecular Structure:
Molecular Structure of 1809249-37-3 (Remdesivir)
Formula: C27H35N6O8P
Molecular Weight: 602.584
Synonyms: N/A
EINECS: N/A
Density: 1.47±0.1 g/cm3(Predicted)
Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Solubility: N/A
Appearance: N/A
Hazard Symbols: N/A
Risk Codes: N/A
Safety:
Transport Information: N/A
PSA: 213.36000
LogP: 3.28428
Synthetic route

2-ethylbutyl ((S)-(((3aR,4R,6R,6aR)-6-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-6-cyano-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methoxy)(phenoxy)phosphoryl)-L-alaninate

1809249-37-3

(2S)-2-ethylbutyl 2-(((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Conditions
ConditionsYield
With hydrogenchloride In water; acetone at 20℃; for 3h; pH=3 - 4; Reagent/catalyst;91%
With hydrogenchloride In tetrahydrofuran; water at 0 - 25℃; for 8h;73%
With hydrogenchloride In tetrahydrofuran; water at 20℃; Inert atmosphere;69%
1191237-69-0

(2R,3R,4S,5R)‑2‑(4‑aminopyrrolo[1,2‑f][1,2,4]triazin‑7‑yl)‑3,4‑dihydroxy‑5‑(hydroxymethyl)tetrahydrofuran‑2‑carbonitrile

C21H26N3O9P

1809249-37-3

(2S)-2-ethylbutyl 2-(((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Conditions
ConditionsYield
Stage #1: (2R,3R,4S,5R)‑2‑(4‑aminopyrrolo[1,2‑f][1,2,4]triazin‑7‑yl)‑3,4‑dihydroxy‑5‑(hydroxymethyl)tetrahydrofuran‑2‑carbonitrile With titanium(IV) isopropylate; tert-butylmagnesium chloride In tetrahydrofuran at -10 - 0℃; for 0.5h;
Stage #2: C21H26N3O9P In tetrahydrofuran at -10 - 20℃; Solvent; Reagent/catalyst;
86.2%

2-ethylbutyl (2S)-2-{[(S)-{[(3aR,4R,6R,6aR)-6-{4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl}-6-cyano-2-phenyl-tetrahydro-2H-furo[3,4-d][1,3]dioxol-4-yl]methoxy}(phenoxy)phosphoryl]amino}propanoate

1809249-37-3

(2S)-2-ethylbutyl 2-(((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Conditions
ConditionsYield
at 60℃;84%
1191237-69-0

(2R,3R,4S,5R)‑2‑(4‑aminopyrrolo[1,2‑f][1,2,4]triazin‑7‑yl)‑3,4‑dihydroxy‑5‑(hydroxymethyl)tetrahydrofuran‑2‑carbonitrile

C19H27N2O7P

1809249-37-3

(2S)-2-ethylbutyl 2-(((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Conditions
ConditionsYield
With diisopropylamine; zinc dibromide In tetrahydrofuran at 20℃; for 4h; Reagent/catalyst; Solvent; Inert atmosphere; Molecular sieve;81%
1355049-92-1

2-ethylbutyl (2S)-2-{[chloro(phenoxy)phosphoryl]amino}propanoate

1191237-80-5

(3αR,4R,6R,6αR)-4-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-6-(hydroxymethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carbonitrile

1809249-37-3

(2S)-2-ethylbutyl 2-(((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Conditions
ConditionsYield
Stage #1: (3αR,4R,6R,6αR)-4-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-6-(hydroxymethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carbonitrile With 2,6-dimethylpyridine; C17H21N3O2 In dichloromethane at -20 - 20℃; for 0.333333h; Inert atmosphere; Molecular sieve;
Stage #2: 2-ethylbutyl (2S)-2-{[chloro(phenoxy)phosphoryl]amino}propanoate In dichloromethane at -20 - 20℃; for 24h; Inert atmosphere; Molecular sieve;
Stage #3: With toluene-4-sulfonic acid In methanol at 20℃; for 24h; Inert atmosphere;
73%
Multi-step reaction with 2 steps
1.1: C17H21N3O2; 2,6-dimethylpyridine / dichloromethane / 0.33 h / -40 - 20 °C / Inert atmosphere; Molecular sieve
1.2: 24 h / 4 - 20 °C / Inert atmosphere; Molecular sieve
2.1: hydrogenchloride / tetrahydrofuran; water / 20 °C / Inert atmosphere
View Scheme
Multi-step reaction with 2 steps
1.1: C17H21N3O2; 2,6-dimethylpyridine / dichloromethane / 0.33 h / -40 - 20 °C / Inert atmosphere; Molecular sieve
1.2: 24 h / 4 - 20 °C / Inert atmosphere; Molecular sieve
2.1: hydrogenchloride / tetrahydrofuran; water / 20 °C / Inert atmosphere
View Scheme
Stage #1: (3αR,4R,6R,6αR)-4-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-6-(hydroxymethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carbonitrile With tert-butylmagnesium chloride In tetrahydrofuran at -40 - 30℃;
Stage #2: 2-ethylbutyl (2S)-2-{[chloro(phenoxy)phosphoryl]amino}propanoate In tetrahydrofuran at -40 - 10℃;
100 mg
1191237-69-0

(2R,3R,4S,5R)‑2‑(4‑aminopyrrolo[1,2‑f][1,2,4]triazin‑7‑yl)‑3,4‑dihydroxy‑5‑(hydroxymethyl)tetrahydrofuran‑2‑carbonitrile

C20H26ClN2O5P

1809249-37-3

(2S)-2-ethylbutyl 2-(((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Conditions
ConditionsYield
With triethylamine; zinc(II) chloride In tetrahydrofuran at 65℃; for 25h; Inert atmosphere;44%
1191237-69-0

(2R,3R,4S,5R)‑2‑(4‑aminopyrrolo[1,2‑f][1,2,4]triazin‑7‑yl)‑3,4‑dihydroxy‑5‑(hydroxymethyl)tetrahydrofuran‑2‑carbonitrile

C20H26ClN2O5P

1809249-37-3

(2S)-2-ethylbutyl 2-(((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; magnesium chloride In 1,4-dioxane at 55℃; for 25h; Inert atmosphere;42%
1191237-69-0

(2R,3R,4S,5R)‑2‑(4‑aminopyrrolo[1,2‑f][1,2,4]triazin‑7‑yl)‑3,4‑dihydroxy‑5‑(hydroxymethyl)tetrahydrofuran‑2‑carbonitrile

C20H26BrN2O5P

1809249-37-3

(2S)-2-ethylbutyl 2-(((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Conditions
ConditionsYield
With potassium carbonate; zinc dibromide In tert-butyl methyl ether at 75℃; for 25h; Inert atmosphere;40.5%

(2R,3R,4R,5R)-2-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis((tert-butyldimethylsilyl)oxy)-5-(hydroxymethyl)tetrahydrofuran-2-carbonitrile

(2S)-2-ethylbutyl 2-(((S)-(perfluorophenoxy)(phenoxy)phosphoryl)amino)propanoate

1809249-37-3

(2S)-2-ethylbutyl 2-(((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: tert-butylmagnesium chloride / tetrahydrofuran / 16 h / -10 - 5 °C
2: hydrogenchloride; water / 72 h / 0 - 20 °C
View Scheme

(2R,3R,4R,5R)-2-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis((tert-butyldimethylsilyl)oxy)-5-(hydroxymethyl)tetrahydrofuran-2-carbonitrile

2-ethylbutyl (2S)-2-((S)-((4-nitrophenoxy)(phenoxy)phosphoryl)amino)propanoate

1809249-37-3

(2S)-2-ethylbutyl 2-(((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: magnesium chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 21 h / 50 °C
2: hydrogenchloride; water / 72 h / 0 - 20 °C
View Scheme
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Specification

Product Description:

Novel inhibitor of the replication of several taxonomically diverse RNA viruses such as Middle East respiratory syndrome virus, Ebola virus, Lassa fever virus, Junin virus and respiratory syncytial virus, while having low cytotoxicity in a wide-range of cell lines

Remdesivir Properties

Background Information

Remdesivir is a nucleoside analogue, with effective antiviral activity, with EC50s of 74 nM for ARS-CoV and MERS-CoV in HAE cells, and 30 nM for murine hepatitis virus in delayed brain tumor cells. 
Remdesivir, also known as GS-5734, is an antiviral drug, a novel nucleotide analog prodrug. It was developed by Gilead Sciences as a treatment for filovirus infections such as Ebola virus disease and Marburg virus, though it has subsequently also been found to show reasonable antiviral activity against more distantly related viruses such as respiratory syncytial virus, Junin virus, Lassa fever virus, and MERS-coronavirus. GS-5734 was rapidly pushed through clinical trials due to the 2013–2016 West African Ebola virus epidemic crisis, eventually being used in at least one human patient despite its early development stage at the time. Preliminary results have been promising, and further clinical trials are planned.
GS-5734 (Remdesivir) is a monophosphoramidate prodrug of adenosine analogue that exhibits antiviral activity against multiple variants of EBOV (EC50=70-140 nM) and other filoviruses (EC50=0.019-1.48 uM) in cell-based assays; suppresses EBOV replication and protects 100% of EBOV-infected animals against lethal disease, ameliorating clinical disease signs and pathophysiological markers.
InChI
InChI=1S/C27H35N6O8P/c1-4-18(5-2)13-38-26(36)17(3)32-42(37,41-19-9-7-6-8-10-19)39-14-21-23(34)24(35)27(15-28,40-21)22-12-11-20-25(29)30-16-31-33(20)22/h6-12,16-18,21,23-24,34-35H,4-5,13-14H2,1-3H3,(H,32,37)(H2,29,30,31)/t17-,21+,23+,24+,27-,42-/m0/s1 InChIKey
RWWYLEGWBNMMLJ-YSOARWBDSA-N
Smiles
CCC(CC)COC(=O)[C@H](C)N[P@](=O)(OC[C@H]1O[C@](C#N)([C@H](O)[C@@H]1O)c2ccc3c(N)ncnn23)Oc4ccccc4