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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1944445Generated: November 2, 2026

Hydrochloric Acid → HCID 67044740, compound

https://huagongshe.com/reaction/1944445

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 67044070HCID 67044070—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67044740HCID 67044740158%

Reaction Conditions

Temperature40 °C

Reaction Steps

A mixture of {5-chloro-3-[2-(benzenesulfonyl)pyridin-2-ylmethyl]-3-methylindol-1-yl}acetic acid methyl ester (0.15 g) and tetrahydrofuran (1.3 mL) was treated with 5.0 M aqueous sodium hydroxide solution (1.7 mL), and the resulting mixture was stirred at 40° C. for 2 hours. The mixture was acidified by the addition of 5.0 M aqueous hydrochloric acid solution and extracted with ethyl acetate. 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 (0.23 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394836B2
Source datasetuspto-grants-2013_03
ORD IDord-56b6a7298ef844fe9d01cbf00e19e1e9
Source noteuspto-grants-2013_03