1,2-Pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl) ester, (2S)- → (S)-Pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-{(RS)-1-[4-((8S,11R,13S,14S,17S)-17-hydroxy-13-methyl-3-oxo-17-pentafluoroethyl-2,3,6,7,8,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-11-yl)phenyl]ethyl}ester

HRID 511048Notes

Reaction equation

HRID 511048 reaction equation
[OH:1][C@:2]1([C:30]([F:36])([F:35])[C:31]([F:34])([F:33])[F:32])[C@:18]2([CH3:19])[C@H:5]([C@H:6]3[C:15]([C@@H:16]([C:20]4[CH:25]=[CH:24][C:23]([CH:26]([OH:28])[CH3:27])=[CH:22][CH:21]=4)[CH2:17]2)=[C:14]2[C:9](=[CH:10][C:11](=[O:29])[CH2:12][CH2:13]2)[CH2:8][CH2:7]3)[CH2:4][CH2:3]1.[C:37]([O:41][C:42]([N:44]1[CH2:48][CH2:47][CH2:46][C@H:45]1[C:49](O)=[O:50])=[O:43])([CH3:40])([CH3:39])[CH3:38]>>[OH:1][C@:2]1([C:30]([F:35])([F:36])[C:31]([F:32])([F:33])[F:34])[C@:18]2([CH3:19])[C@H:5]([C@H:6]3[C:15]([C@@H:16]([C:20]4[CH:21]=[CH:22][C:23]([CH:26]([O:28][C:49]([C@@H:45]5[CH2:46][CH2:47][CH2:48][N:44]5[C:42]([O:41][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:43])=[O:50])[CH3:27])=[CH:24][CH:25]=4)[CH2:17]2)=[C:14]2[C:9](=[CH:10][C:11](=[O:29])[CH2:12][CH2:13]2)[CH2:8][CH2:7]3)[CH2:4][CH2:3]1

Participants

3

Reactant 2

HCID 850831,2-Pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl) ester, (2S)-HCID 18346565(8S,11R,13S,14S,17S)-17-hydroxy-11-[4-((RS)-1-hydroxyethyl)phenyl]-1 3-methyl-17-pentafluoroethyl-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one

Product 1

HCID 86670524(S)-Pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-{(RS)-1-[4-((8S,11R,13S,14S,17S)-17-hydroxy-13-methyl-3-oxo-17-pentafluoroethyl-2,3,6,7,8,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-11-yl)phenyl]ethyl}esterYield 78%

Procedure

In analogy to Example 5, 330 mg (0.65 mmol) of (8S,11R,13S,14S,17S)-17-hydroxy-11-[4-((RS)-1-hydroxyethyl)phenyl]-13-methyl-17-pentafluoroethyl-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one were converted using (S)-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester and, after workup and purification, 356 mg (78%) of the title compounds were isolated as a colourless foam.

Workup

  1. customafter workup and purification

Sources & evidence

ORD record
ord-b8a4622e1d414231a55ab9520adff902
Source dataset
uspto-grants-2015_08
Patent number
US09096639B2

Reaction notes

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