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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1697691Generated: October 25, 2026

Lawesson's reagent → 4-{5-[(2S,4R)-2-Methoxycarbonyl-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidin-1-yl]-3-methyl-pyrazol-1-yl}-piperidine-1-carboxylic Acid Benzyl Ester

https://huagongshe.com/reaction/1697691

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLawesson's reagentHCID 87949—
ReactantBenzyl 4-hydrazinylpiperidine-1-carboxylateHCID 21098319—
Reactant(2S,4R)-1-(3-oxo-butyryl)-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl esterHCID 86646859—
Product4-{5-[(2S,4R)-2-Methoxycarbonyl-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidin-1-yl]-3-methyl-pyrazol-1-yl}-piperidine-1-carboxylic Acid Benzyl EsterHCID 66770398—

Reaction Steps

In analogy to the procedure described in example 308d, (2S,4R)-1-(3-oxo-butyryl)-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl ester (example 192f) was reacted with Lawesson's reagent (CAS Reg. No. 19172-47-5) and 4-hydrazino-piperidine-1-carboxylic acid benzyl ester (CAS Reg. No. 280111-51-5) to give the title compound as yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163793B2
Source datasetuspto-grants-2012_04
ORD IDord-9b56101290c04bc299c08046e3f217fe
Source noteuspto-grants-2012_04