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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1944448Generated: October 31, 2026

Hydrochloric Acid → HCID 58201243, compound

https://huagongshe.com/reaction/1944448

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 67044191HCID 67044191—
SolventTetrahydrofuranHCID 8028—
ProductHCID 58201243HCID 58201243—

Reaction Conditions

Temperature45 °C

Reaction Steps

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).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394836B2
Source datasetuspto-grants-2013_03
ORD IDord-f1bcb5fcccad4124855d6c0db497540c
Source noteuspto-grants-2013_03