(4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid

Base Information

Chemical Name:(4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid
CAS No.:1399259-07-4
Molecular Formula:C₃₅H₃₆F₃NO₆
Molecular Weight:623.669
Hs Code.:

(4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid

Synonyms:(4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid

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Chemical Property of (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid

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Technology Process of (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid

There total 8 articles about (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid 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: 99.0%

: 1399259-05-2
(4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-6b-(2-hydroxy-acetyl)-4a,6a-dimethyl-4a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthren-2-one

: 1399259-07-4
(4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid

Guidance literature:: (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-6b-(2-hydroxy-acetyl)-4a,6a-dimethyl-4a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthren-2-one; With oxygen; sodium hydroxide; In tetrahydrofuran; water; at 0 - 20 ℃; for 24h;

With hydrogenchloride; In tetrahydrofuran; water; pH=1;

Reference yield:

: difluprednate

: 1399259-07-4
(4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid

Guidance literature:: Multi-step reaction with 4 steps

1.1: potassium acetate / N,N-dimethyl-formamide / 1.5 h / 100 °C / Inert atmosphere

2.1: Candida Antarctica Lipase / ethanol / 37 °C / Enzymatic reaction

3.1: ethanol / 30 h / 105 °C

4.1: sodium hydroxide; oxygen / water; tetrahydrofuran / 24 h / 0 - 20 °C

4.2: pH 1

With oxygen; potassium acetate; sodium hydroxide; In tetrahydrofuran; ethanol; water; N,N-dimethyl-formamide;

Reference yield:

: 2326-26-3
acetic acid 2-((6S,8S,9R,10S,11S,13S,14S)-6,9-difluoro-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthrene-17-yl)-2-oxo-ethyl ester

: 1399259-07-4
(4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4b,12-difluoro-8-[4-(4-fluoro-benzyloxy)-benzyl]-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid

Guidance literature:: Multi-step reaction with 3 steps

1.1: Candida Antarctica Lipase / ethanol / 37 °C / Enzymatic reaction

2.1: ethanol / 30 h / 105 °C

3.1: sodium hydroxide; oxygen / water; tetrahydrofuran / 24 h / 0 - 20 °C

3.2: pH 1

With oxygen; sodium hydroxide; In tetrahydrofuran; ethanol; water;