Sodium Hydroxide → 2-((S)-6-((R)-4-(2,6-Dimethyl-4-(3-(methylsulfonyl)propoxy)phenyl)-7-fluoro-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetic acid

HRID 237709Notes

Reaction equation

HRID 237709 reaction equation
[CH3:1][C:2]1[CH:7]=[C:6]([O:8][CH2:9][CH2:10][CH2:11][S:12]([CH3:15])(=[O:14])=[O:13])[CH:5]=[C:4]([CH3:16])[C:3]=1[C:17]1[CH:25]=[CH:24][C:23]([F:26])=[C:22]2[C:18]=1[CH2:19][CH2:20][C@H:21]2[O:27][C:28]1[CH:41]=[CH:40][C:31]2[C@H:32]([CH2:35][C:36]([O:38]C)=[O:37])[CH2:33][O:34][C:30]=2[CH:29]=1.[OH-].[Na+]>C(O)C>[CH3:16][C:4]1[CH:5]=[C:6]([O:8][CH2:9][CH2:10][CH2:11][S:12]([CH3:15])(=[O:14])=[O:13])[CH:7]=[C:2]([CH3:1])[C:3]=1[C:17]1[CH:25]=[CH:24][C:23]([F:26])=[C:22]2[C:18]=1[CH2:19][CH2:20][C@H:21]2[O:27][C:28]1[CH:41]=[CH:40][C:31]2[C@H:32]([CH2:35][C:36]([OH:38])=[O:37])[CH2:33][O:34][C:30]=2[CH:29]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 86697171Methyl 2-((S)-6-((R)-4-(2,6-dimethyl-4-(3-(methylsulfonyl)propoxy)phenyl)-7-fluoro-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetate2×

Product 1

HCID 866973792-((S)-6-((R)-4-(2,6-Dimethyl-4-(3-(methylsulfonyl)propoxy)phenyl)-7-fluoro-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetic acidYield 96.8%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

Methyl 2-((S)-6-((R)-4-(2,6-dimethyl-4-(3-(methylsulfonyl)propoxy)phenyl)-7-fluoro-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetate (Intermediate 29; 9 mg) is suspended in ethanol (1 mL) and aqueous NaOH (1 M; 0.2 mL) is added. The mixture is stirred for 1 hour then concentrated under vacuum, acidified with aqueous HCl (1 M) and extracted twice with dichloromethane. The combined organic extracts are dried and the solvent is removed to give the title compound (8.5 mg). LC (method 20): tR=6.37 min; Mass spectrum (ESI−): m/z=567 [M−H]−.

Workup

  1. concentrationthen concentrated under vacuum
  2. extractionextracted twice with dichloromethane
  3. customThe combined organic extracts are dried
  4. customthe solvent is removed

Sources & evidence

ORD record
ord-0a576dbccf784172b3ee09479962e496
Source dataset
uspto-grants-2014_02
Patent number
US08642585B2

Reaction notes

Loading…