Hydrochloric Acid → HCID 58201243, compound

HRID 1944448Notes

Reaction equation

C[O:2][C:3](=[O:33])[CH2:4][N:5]1[C:13]2[C:8](=[CH:9][C:10]([F:14])=[CH:11][CH:12]=2)[C:7]([CH2:15][C:16]2[C:17]([S:22]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=3[Cl:31])(=[O:24])=[O:23])=[N:18][CH:19]=[CH:20][CH:21]=2)=[C:6]1[CH3:32].[OH-].[Na+].Cl>O1CCCC1>[F:14][C:10]1[CH:9]=[C:8]2[C:13](=[CH:12][CH:11]=1)[N:5]([CH2:4][C:3]([OH:33])=[O:2])[C:6]([CH3:32])=[C:7]2[CH2:15][C:16]1[C:17]([S:22]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=2[Cl:31])(=[O:24])=[O:23])=[N:18][CH:19]=[CH:20][CH:21]=1

Participants

Conditions

Temperature: 45 °C

Procedure

A mixture of {5-fluoro-3-[2-(2-chlorobenzenesulfonyl)pyridin-3-ylmethyl]-2-methylindol-1-yl}acetic acid methyl ester and tetrahydrofuran (1.0 mL) was treated with 5.0 M aqueous sodium hydroxide solution (1.2 mL), and the resulting mixture was stirred at 45° C. for 4 hours. The mixture was acidified by the addition of 5.0 M aqueous hydrochloric acid solution and extracted with dichloromethane. The combined organic extract was dried over sodium sulfate and concentrated under reduced pressure. The residue was purified by preparative reverse-phase HPLC, eluting with a mixture of acetonitrile and water (2:3 to 9:1 by volume) to afford the title compound as a white solid (0.10 g).

Workup

extractionextracted with dichloromethane
extractionThe combined organic extract
dry with materialwas dried over sodium sulfate
concentrationconcentrated under reduced pressure
customThe residue was purified by preparative reverse-phase HPLC
washeluting with a mixture of acetonitrile and water (2:3 to 9:1 by volume)

Sources & evidence

ORD record: ord-f1bcb5fcccad4124855d6c0db497540c
Source dataset: uspto-grants-2013_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08394836B2

Reaction notes

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