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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1697749Generated: October 29, 2026

Lithium Hydroxide → (2S,4R)-4-Cyclopropylmethanesulfonyl-1-[5-methyl-2-(2,2,2-trifluoro-ethyl)-2H-pyrazol-3-yl]-pyrrolidine-2-carboxylic Acid

https://huagongshe.com/reaction/1697749

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
Reactant(2S,4R)-4-Cyclopropylmethanesulfonyl-1-[5-methyl-2-(2,2,2-trifluoro-ethyl)-2H-pyrazol-3-yl]-pyrrolidine-2-carboxylic Acid Methyl EsterHCID 67278701—
Product(2S,4R)-4-Cyclopropylmethanesulfonyl-1-[5-methyl-2-(2,2,2-trifluoro-ethyl)-2H-pyrazol-3-yl]-pyrrolidine-2-carboxylic AcidHCID 66770981—

Reaction Steps

In analogy to the procedure described in example 253e, (2S,4R)-4-cyclopropylmethanesulfonyl-1-[5-methyl-2-(2,2,2-trifluoro-ethyl)-2H-pyrazol-3-yl]-pyrrolidine-2-carboxylic acid methyl ester was saponified in the presence of lithium hydroxide to give the title compound as off-white solid which was used in the next step without further purification. MS (ESI): m/z=396.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163793B2
Source datasetuspto-grants-2012_04
ORD IDord-c59a50a0d2424c318f29974736c9a9d1
Source noteuspto-grants-2012_04