methyl 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Base Information

Chemical Name:methyl 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate
CAS No.:1351278-96-0
Molecular Formula:C₄₂H₆₄N₂O₃
Molecular Weight:644.982
Hs Code.:

methyl 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Synonyms:methyl 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

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Chemical Property of methyl 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

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Technology Process of methyl 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

There total 10 articles about methyl 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 22.0%

: 1351279-17-8
methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

: 1351278-96-0
methyl 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Guidance literature:: With hydrogen; acetic acid; palladium on activated charcoal; In methanol; for 18h; under 2068.65 Torr;

Reference yield:

: 1361476-23-4
C₃₈H₅₃ClO₃

: 108-00-9
N,N-dimethylethylenediamine

: 1351278-96-0
methyl 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Guidance literature:: With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 20 ℃; for 2h;

Reference yield:

Betulinic acid: 472-15-1
Betulinic acid

: 1351278-96-0
methyl 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

Guidance literature:: Multi-step reaction with 9 steps

1.1: hydrogen; methanol / palladium 10% on activated carbon / ethyl acetate; methanol / 18 h / 20 °C / 2327.23 Torr

2.1: potassium carbonate / N,N-dimethyl-formamide / 3 h / 60 °C

3.1: pyridinium chlorochromate / dichloromethane / 4 h

4.1: potassium hexamethylsilazane / tetrahydrofuran / 0.25 h / -78 °C

4.2: 2.33 h / -78 °C

5.1: sodium carbonate / tetrakis(triphenylphosphine) palladium⁽⁰⁾ / 1,4-dioxane; water / 2 h / 90 °C / Inert atmosphere

6.1: triethylamine / palladium diacetate / dichloromethane / 3 h / 60 °C / Inert atmosphere

7.1: tetrabutyl ammonium fluoride / 1,4-dioxane / 2 h / 20 °C

8.1: thionyl chloride / dichloromethane / 2 h / 20 °C

9.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 2 h / 20 °C

With methanol; thionyl chloride; tetrabutyl ammonium fluoride; hydrogen; potassium hexamethylsilazane; sodium carbonate; potassium carbonate; triethylamine; N-ethyl-N,N-diisopropylamine; pyridinium chlorochromate; tetrakis(triphenylphosphine) palladium⁽⁰⁾; palladium 10% on activated carbon; palladium diacetate; In tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; water; ethyl acetate; N,N-dimethyl-formamide;