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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1720575Generated: October 26, 2026

Dichloromethane → 2(R)-[[4-methoxybenzenesulfonyl](3-picolyl)amino]-3-methyl-butanoic acid hydrochloride

https://huagongshe.com/reaction/1720575

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
Reactantt-Butyl 2(R)-[[4-methoxybenzenesulfonyl](3-picolyl)amino]-3-methylbutanoateHCID 11797104—
Product2(R)-[[4-methoxybenzenesulfonyl](3-picolyl)amino]-3-methyl-butanoic acid hydrochlorideHCID 70061703—

Reaction Conditions

Temperature10 °C

Reaction Steps

t-Butyl 2(R)-[[4-methoxybenzenesulfonyl](3-picolyl)amino]-3-methylbutanoate (5.3 g, 12.2 mmol) is dissolved in methylene chloride (150 mL) and cooled to-10° C. Hydrochloric acid gas is bubbled into the solution for 10 minutes. The reaction mixture is then sealed, warmed to room temperature and stirred for 4 hours. The solvent is then evaporated to provide 2(R)-[[4-methoxybenzenesulfonyl](3-picolyl)amino]-3-methylbutanoic acid hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05506242
Source datasetuspto-grants-1996_04
ORD IDord-e6d8c332a2dd41e6b14cbe25086b05b5
Source noteuspto-grants-1996_04