(3S,8S,9S,10R,13S,14S,17S)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 2-pyridin-2-yl-cyclohexyl ester

Base Information

• Chemical Name: (3S,8S,9S,10R,13S,14S,17S)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 2-pyridin-2-yl-cyclohexyl ester
• CAS No.: 525602-92-0
• Molecular Formula: C₃₃H₄₅NO₄
• Molecular Weight: 519.725

Synonyms:

Chemical Property of (3S,8S,9S,10R,13S,14S,17S)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 2-pyridin-2-yl-cyclohexyl ester

Chemical Property:

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MSDS Files:

Useful:

Technology Process of (3S,8S,9S,10R,13S,14S,17S)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 2-pyridin-2-yl-cyclohexyl ester

There total 4 articles about (3S,8S,9S,10R,13S,14S,17S)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 2-pyridin-2-yl-cyclohexyl ester 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:

3β-acetoxy-5-etienic acid chloride (7429-97-2) + (+/-)-trans-2-pyridin-2-ylcyclohexanol → (3S,8S,9S,10R,13S,14S,17S)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 2-pyridin-2-yl-cyclohexyl ester (525602-92-0) + (3S,8S,9S,10R,13S,14S,17S)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 2-pyridin-2-yl-cyclohexyl ester (525602-92-0)

Guidance literature:

With triethylamine; In dichloromethane; at 20 ℃; for 19h;

DOI:10.1002/1521-3765(20021216)8:24<5551::AID-CHEM5551>3.0.CO;2-V

Reference yield:

3β-acetoxy-5-etienic acid chloride (7429-97-2) + (+/-)-trans-2-pyridin-2-ylcyclohexanol → (3S,8S,9S,10R,13S,14S,17S)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 2-pyridin-2-yl-cyclohexyl ester (525602-92-0) + (3S,8S,9S,10R,13S,14S,17S)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 2-pyridin-2-yl-cyclohexyl ester (525602-92-0)

Guidance literature:

With triethylamine; In dichloromethane; at 20 ℃; for 19h;

DOI:10.1002/1521-3765(20021216)8:24<5551::AID-CHEM5551>3.0.CO;2-V

Reference yield:

2-(pyridin-2-yl)cyclohexan-1-one (3311-57-7) → (3S,8S,9S,10R,13S,14S,17S)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 2-pyridin-2-yl-cyclohexyl ester (525602-92-0)

Guidance literature:

Multi-step reaction with 2 steps

1: 55 percent / NaBH₄ / ethanol / 3.5 h / Heating

2: Et₃N / CH₂Cl₂ / 19 h / 20 °C

With sodium tetrahydroborate; triethylamine; In ethanol; dichloromethane;

DOI:10.1002/1521-3765(20021216)8:24<5551::AID-CHEM5551>3.0.CO;2-V

upstream raw materials:

3β-acetoxy-5-etienic acid chloride

2-(pyridin-2-yl)cyclohexan-1-one

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