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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1697588Generated: October 26, 2026

1-Boc-1-methylhydrazine → (2S,4R)-1-[3-(tert-Butoxycarbonyl-methyl-hydrazono)-thiobutyryl]-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic Acid Methyl Ester

https://huagongshe.com/reaction/1697588

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Boc-1-methylhydrazineHCID 3748280—
Reactant(2S,4R)-1-(3-oxo-thiobutyryl)-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl esterHCID 86646823—
Product(2S,4R)-1-[3-(tert-Butoxycarbonyl-methyl-hydrazono)-thiobutyryl]-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic Acid Methyl EsterHCID 86646836—

Reaction Steps

In analogy to the procedure described in example 192 h, (2S,4R)-1-(3-oxo-thiobutyryl)-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl ester (example 192 g) was reacted with N-methyl-hydrazinecarboxylic acid tert-butyl ester (CAS Reg. No. 21075-83-2) to give the title compound as off-white solid. MS (ESI): m/z=566.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163793B2
Source datasetuspto-grants-2012_04
ORD IDord-fabb3c98ef5a4d96b3a86a8a2a243298
Source noteuspto-grants-2012_04