Benzylhydrazine dihydrochloride → HCID 66770916, compound

Participants

Reaction Steps

In analogy to the procedure described in example 192 h, a mixture of (2S,4R)-1-(3-oxo-thiobutyryl)-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl ester (example 192 g) and of (2R,4R)-1-(3-oxo-thiobutyryl)-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl ester was reacted with benzylhydrazine dihydrochloride (CAS Reg. No. 20570-96-1) to give a mixture of the title compound and (2R,4R)-1-(2-benzyl-5-methyl-2H-pyrazol-3-yl)-4-(2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl ester as orange oil. MS (ESI): m/z=508.2 [M+H]+.

Provenance & Evidence