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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1697668Generated: October 30, 2026

Methylhydrazine → (2S,4R)-1-[1-Methyl-5-(tetrahydro-pyran-4-yl)-1H-pyrazol-3-yl]-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic Acid Methyl Ester

https://huagongshe.com/reaction/1697668

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylhydrazineHCID 6061—
Reactant(2S,4R)-1-[3-oxo-3-(tetrahydro-pyran-4-yl)-thiopropionyl]-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic Acid Methyl EsterHCID 86646857—
Product(2S,4R)-1-[1-Methyl-5-(tetrahydro-pyran-4-yl)-1H-pyrazol-3-yl]-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic Acid Methyl EsterHCID 66772551—

Reaction Steps

In analogy to the procedure described in example 192 h, (2S,4R)-1-[3-oxo-3-(tetrahydro-pyran-4-yl)-thiopropionyl]-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl ester was reacted with methylhydrazine (CAS Reg. No. 60-34-4) to give the title compound as colorless foam. MS (ESI): m/z=502.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163793B2
Source datasetuspto-grants-2012_04
ORD IDord-26837cb48de14f438de075c186e7723b
Source noteuspto-grants-2012_04