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2-Cyano-3,12-dioxooleana-1,9-dien-28-oic acid

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Name

2-Cyano-3,12-dioxooleana-1,9-dien-28-oic acid

EINECS N/A
CAS No. 218600-44-3 Density 1.18g/cm3
PSA 95.23000 LogP 6.29058
Solubility N/A Melting Point 180-182 °C
Formula C31H41NO4 Boiling Point 632.9°Cat760mmHg
Molecular Weight 491.671 Flash Point 336.6°C
Transport Information N/A Appearance N/A
Safety Risk Codes N/A
Molecular Structure Molecular Structure of 218600-44-3 (Bardoxolone) Hazard Symbols N/A
Synonyms

(4aS,6aR,6bS,8aS,12aR,14aR,14bS)-11-cyano-2,2,6a,6b,9,9,12a-heptamethyl-10,14-dioxo-1,3,4,5,6,7,8,8a,14a,14b-decahydropicene-4a-carboxylic acid;

Article Data 8

2-Cyano-3,12-dioxooleana-1,9-dien-28-oic acid Synthetic route

218600-53-4

bardoxolone methyl

218600-44-3

bardoxolone

Conditions
ConditionsYield
With lithium iodide In N,N-dimethyl-formamide71%
With lithium iodide In N,N-dimethyl-formamide71%
With lithium iodide In N,N-dimethyl-formamide at 153℃; for 12h; Inert atmosphere;70.3%
With lithium iodide In N,N-dimethyl-formamide for 4h; Heating;68%
With lithium iodide In N,N-dimethyl-formamide Inert atmosphere; Reflux;44%
915710-94-0, 1244059-91-3, 1165931-54-3

tert‐butyl N‐[2‐(N‐hydroxycarbamimidoyl)ethyl]carbamate

443104-14-1

2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oic acid chloride

A

C39H54N4O5

B

218600-44-3

bardoxolone

Conditions
ConditionsYield
Stage #1: tert‐butyl N‐[2‐(N‐hydroxycarbamimidoyl)ethyl]carbamate; 2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oic acid chloride With triethylamine In dichloromethane at 20℃; for 2h; Inert atmosphere;
Stage #2: With tetra(n-butyl)ammonium hydroxide In tetrahydrofuran; water at 20℃; for 5h; Inert atmosphere;
A 45%
B n/a
915710-94-0, 1244059-91-3, 1165931-54-3

tert‐butyl N‐[2‐(N‐hydroxycarbamimidoyl)ethyl]carbamate

443104-14-1

2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oic acid chloride

A

C39H56N4O6

B

218600-44-3

bardoxolone

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 2h; Inert atmosphere;
67015-15-0

3-methoxypropionamidoxime hydrochloride

443104-14-1

2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oic acid chloride

A

C35H49N3O5

B

218600-44-3

bardoxolone

Conditions
ConditionsYield
With triethylamine; trimethylamine In dichloromethane at 20℃; Inert atmosphere;
65023-20-3

methyl 3β-acetoxy-12-oxoolean-9(11)-en-28-oate

218600-44-3

bardoxolone

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: 97 percent / methanolic KOH / 0.5 h / Heating
2: 92 percent / Jones reagent / acetone / 0.17 h / 20 °C
3: 99 percent / NaOMe / benzene / 2 h / 20 °C
4: 66 percent / NH2OH*HCl / ethanol; H2O / 1 h / Heating
5: 100 percent / NaOMe / methanol; diethyl ether / 0.75 h / 20 °C
6: 92 percent / DDQ / benzene / 0.5 h / Heating
7: 68 percent / LiI / dimethylformamide / 4 h / Heating
View Scheme
Multi-step reaction with 7 steps
1: aq. KOH / methanol
2: CrO3, H2SO4
3: 100 percent / sodium methoxide / benzene
4: 61 percent / NH2OH*HCl / aq. ethanol
5: 100 percent / sodium methoxide / methanol; diethyl ether
6: 1.) phenylselenenyl chloride, 2.) 30 percent aq. H2O2 / 1.) ethyl acetate, 2.) THF
7: 71 percent / LiI / dimethylformamide
View Scheme
Multi-step reaction with 6 steps
1: potassium hydroxide; water / methanol
2: sodium methylate / benzene
3: hydroxylamine hydrochloride / water; ethanol
4: sodium methylate / methanol; diethyl ether
5: Phenylselenyl chloride / ethyl acetate
6: lithium iodide / N,N-dimethyl-formamide
View Scheme
Multi-step reaction with 5 steps
1.1: potassium hydroxide / methanol / 1 h / Reflux
2.1: chromium(VI) oxide; sulfuric acid / water; acetone / 0 - 20 °C
3.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 0.33 h / -78 - 20 °C / Inert atmosphere
3.2: 0.08 h / -78 - 20 °C
4.1: 2,3-dicyano-5,6-dichloro-p-benzoquinone / benzene / 0.5 h / Reflux; Inert atmosphere
5.1: lithium iodide / N,N-dimethyl-formamide / Inert atmosphere; Reflux
View Scheme
218600-50-1

methyl 3,12-dioxoolean-9(11)-en-28-oate

218600-44-3

bardoxolone

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 99 percent / NaOMe / benzene / 2 h / 20 °C
2: 66 percent / NH2OH*HCl / ethanol; H2O / 1 h / Heating
3: 100 percent / NaOMe / methanol; diethyl ether / 0.75 h / 20 °C
4: 92 percent / DDQ / benzene / 0.5 h / Heating
5: 68 percent / LiI / dimethylformamide / 4 h / Heating
View Scheme
Multi-step reaction with 5 steps
1: 100 percent / sodium methoxide / benzene
2: 61 percent / NH2OH*HCl / aq. ethanol
3: 100 percent / sodium methoxide / methanol; diethyl ether
4: 1.) phenylselenenyl chloride, 2.) 30 percent aq. H2O2 / 1.) ethyl acetate, 2.) THF
5: 71 percent / LiI / dimethylformamide
View Scheme
Multi-step reaction with 5 steps
1: sodium methylate / benzene
2: hydroxylamine hydrochloride / water; ethanol
3: sodium methylate / methanol; diethyl ether
4: Phenylselenyl chloride / ethyl acetate
5: lithium iodide / N,N-dimethyl-formamide
View Scheme
Multi-step reaction with 3 steps
1.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 0.33 h / -78 - 20 °C / Inert atmosphere
1.2: 0.08 h / -78 - 20 °C
2.1: 2,3-dicyano-5,6-dichloro-p-benzoquinone / benzene / 0.5 h / Reflux; Inert atmosphere
3.1: lithium iodide / N,N-dimethyl-formamide / Inert atmosphere; Reflux
View Scheme
65023-19-0

methyl 3β-hydroxy-12-oxoolean-9(11)-en-28-oate

218600-44-3

bardoxolone

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: 92 percent / Jones reagent / acetone / 0.17 h / 20 °C
2: 99 percent / NaOMe / benzene / 2 h / 20 °C
3: 66 percent / NH2OH*HCl / ethanol; H2O / 1 h / Heating
4: 100 percent / NaOMe / methanol; diethyl ether / 0.75 h / 20 °C
5: 92 percent / DDQ / benzene / 0.5 h / Heating
6: 68 percent / LiI / dimethylformamide / 4 h / Heating
View Scheme
Multi-step reaction with 6 steps
1: CrO3, H2SO4
2: 100 percent / sodium methoxide / benzene
3: 61 percent / NH2OH*HCl / aq. ethanol
4: 100 percent / sodium methoxide / methanol; diethyl ether
5: 1.) phenylselenenyl chloride, 2.) 30 percent aq. H2O2 / 1.) ethyl acetate, 2.) THF
6: 71 percent / LiI / dimethylformamide
View Scheme
Multi-step reaction with 4 steps
1.1: chromium(VI) oxide; sulfuric acid / water; acetone / 0 - 20 °C
2.1: lithium diisopropyl amide / tetrahydrofuran; n-heptane; ethylbenzene / 0.33 h / -78 - 20 °C / Inert atmosphere
2.2: 0.08 h / -78 - 20 °C
3.1: 2,3-dicyano-5,6-dichloro-p-benzoquinone / benzene / 0.5 h / Reflux; Inert atmosphere
4.1: lithium iodide / N,N-dimethyl-formamide / Inert atmosphere; Reflux
View Scheme
218600-52-3

methyl 12-oxoisoxazolo[4,5-b]olean-9(11)-en-28-oate

218600-44-3

bardoxolone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 100 percent / NaOMe / methanol; diethyl ether / 0.75 h / 20 °C
2: 92 percent / DDQ / benzene / 0.5 h / Heating
3: 68 percent / LiI / dimethylformamide / 4 h / Heating
View Scheme
Multi-step reaction with 3 steps
1: 100 percent / sodium methoxide / methanol; diethyl ether
2: 1.) phenylselenenyl chloride, 2.) 30 percent aq. H2O2 / 1.) ethyl acetate, 2.) THF
3: 71 percent / LiI / dimethylformamide
View Scheme
Multi-step reaction with 3 steps
1: sodium methylate / methanol; diethyl ether
2: Phenylselenyl chloride / ethyl acetate
3: lithium iodide / N,N-dimethyl-formamide
View Scheme
1309236-68-7

2-cyano-3-hydroxy-12-oxoolean-2(3),9(11)-dien-28-oic acid

218600-44-3

bardoxolone

Conditions
ConditionsYield
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In benzene for 0.25h; Reflux;91%
305818-39-7

methyl 2-hydroxymethylene-3,12-dioxoolean-9(11)-en-28-oate

218600-44-3

bardoxolone

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 66 percent / NH2OH*HCl / ethanol; H2O / 1 h / Heating
2: 100 percent / NaOMe / methanol; diethyl ether / 0.75 h / 20 °C
3: 92 percent / DDQ / benzene / 0.5 h / Heating
4: 68 percent / LiI / dimethylformamide / 4 h / Heating
View Scheme

2-Cyano-3,12-dioxooleana-1,9-dien-28-oic acid Specification

The 2-Cyano-3,12-dioxooleana-1,9-dien-28-oic acid with the cas number 218600-44-3 is also called CDDO acid. The IUPAC name is (4aS,6aR,6bS,8aR,12aS,14aR,14bS)-11-cyano-2,2,6a,6b,9,9,12a-heptamethyl-10,14-dioxo-1,3,4,5,6,7,8,8a,14a,14b-decahydropicene-4a-carboxylic acid. Its molecular formula is C31H41NO4. This chemical is a kind of organics. It should be stored in dry and cool environment.

The properties of the chemical are: (1)ACD/LogP: 5.76; (2)# of Rule of 5 Violations: 1 ; (3)#H bond acceptors: 5; (4)#H bond donors: 1; (5)#Freely Rotating Bonds: 1; (6)Polar Surface Area: 84.23Å2; (7)Index of Refraction: 1.574; (8)Molar Refractivity: 136.54 cm3; (9)Molar Volume: 413.4 cm3; (10)Polarizability: 54.13×10-24cm3; (11)Surface Tension: 51.1 dyne/cm; (12)Enthalpy of Vaporization: 102.11 kJ/mol; (13)Vapour Pressure: 1.2×10-17 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C4C(\C#N)=C/[C@@]5(/C3=C/C(=O)[C@H]2[C@](CC[C@@]1(C(=O)O)CCC(C)(C)C[C@H]12)(C)[C@]3(C)CC[C@H]5C4(C)C)C
(2)InChI: InChI=1/C31H41NO4/c1-26(2)10-12-31(25(35)36)13-11-30(7)23(19(31)16-26)20(33)14-22-28(5)15-18(17-32)24(34)27(3,4)21(28)8-9-29(22,30)6/h14-15,19,21,23H,8-13,16H2,1-7H3,(H,35,36)/t19-,21-,23-,28-,29+,30+,31-/m0/s1
(3)InChIKey: TXGZJQLMVSIZEI-UQMAOPSPBH

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