Cyclobutylhydrazine--hydrogen chloride (1/1) → (2S,4R)-1-(2-Cyclobutyl-5-methyl-2H-pyrazol-3-yl)-4-(4-fluoro-2-trifluoromethyl-benzenesulfonyl)-pyrrolidine-2-carboxylic Acid Methyl Ester
Reaction equation
[CH3:1][O:2][C:3]([C@@H:5]1[CH2:9][C@@H:8]([S:10]([C:13]2[CH:18]=[CH:17][C:16]([F:19])=[CH:15][C:14]=2[C:20]([F:23])([F:22])[F:21])(=[O:12])=[O:11])[CH2:7][N:6]1[C:24](=S)[CH2:25][C:26](=O)[CH3:27])=[O:4].Cl.[CH:31]1([NH:35][NH2:36])[CH2:34][CH2:33][CH2:32]1>>[CH3:1][O:2][C:3]([C@@H:5]1[CH2:9][C@@H:8]([S:10]([C:13]2[CH:18]=[CH:17][C:16]([F:19])=[CH:15][C:14]=2[C:20]([F:23])([F:22])[F:21])(=[O:11])=[O:12])[CH2:7][N:6]1[C:24]1[N:35]([CH:31]2[CH2:34][CH2:33][CH2:32]2)[N:36]=[C:26]([CH3:27])[CH:25]=1)=[O:4]Participants
3
Reactant 2
Product 1
Procedure
In analogy to the procedure described in example 192 h, (2S,4R)-4-(4-fluoro-2-trifluoromethyl-benzenesulfonyl)-1-(3-oxo-thiobutyryl)-pyrrolidine-2-carboxylic acid methyl ester was reacted with cyclobutylhydrazine hydrochloride (CAS Reg. No. 158001-21-9) to give the title compound as yellow oil. MS (ESI): m/z=490.1 [M+H]+.