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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1697777Generated: October 27, 2026

Lithium Hydroxide → (2S,4R)-4-(2-Chloro-4-fluorophenylsulfonyl)-1-(3-methyl-1-phenethyl-1H-pyrazol-5-yl)pyrrolidine-2-carboxylic Acid

https://huagongshe.com/reaction/1697777

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
Reactant(2S,4R)-4-(2-Chloro-4-fluorophenylsulfonyl)-1-(3-methyl-1-phenethyl-1H-pyrazol-5-yl)pyrrolidine-2-carboxylic Acid Methyl EsterHCID 66772109—
Product(2S,4R)-4-(2-Chloro-4-fluorophenylsulfonyl)-1-(3-methyl-1-phenethyl-1H-pyrazol-5-yl)pyrrolidine-2-carboxylic AcidHCID 66771951—

Reaction Steps

In analogy to the procedure described in example 253e, (2S,4R)-4-(2-chloro-4-fluorophenylsulfonyl)-1-(3-methyl-1-phenethyl-1H-pyrazol-5-yl)pyrrolidine-2-carboxylic acid methyl ester was saponified in the presence of lithium hydroxide to give the title compound as yellow foam which was used in the next step without further purification. MS (ESI): m/z=492.1 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163793B2
Source datasetuspto-grants-2012_04
ORD IDord-d72227265e3b448b9e9c5e27bb4e1077
Source noteuspto-grants-2012_04