2-Chloro-4-(trifluoromethyl)benzenesulfonyl chloride → 2-(1-{[2-Chloro-4-(trifluoromethyl)phenyl]sulfonyl}piperidin-4-yl)-5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one
Reaction equation
Cl.[CH3:2][O:3][C:4]1[CH:5]=[C:6]([C:12]2[C:13]([CH3:25])([CH3:24])[C:14](=[O:23])[N:15]([CH:17]3[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]3)[N:16]=2)[CH:7]=[CH:8][C:9]=1[O:10][CH3:11].[Cl:26][C:27]1[CH:32]=[C:31]([C:33]([F:36])([F:35])[F:34])[CH:30]=[CH:29][C:28]=1[S:37](Cl)(=[O:39])=[O:38]>>[Cl:26][C:27]1[CH:32]=[C:31]([C:33]([F:35])([F:34])[F:36])[CH:30]=[CH:29][C:28]=1[S:37]([N:20]1[CH2:21][CH2:22][CH:17]([N:15]2[C:14](=[O:23])[C:13]([CH3:25])([CH3:24])[C:12]([C:6]3[CH:7]=[CH:8][C:9]([O:10][CH3:11])=[C:4]([O:3][CH3:2])[CH:5]=3)=[N:16]2)[CH2:18][CH2:19]1)(=[O:39])=[O:38]Participants
3
Reactant 2
Product 1
Procedure
The title compound is prepared analogously as described for GP1 using 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one (compound B1) and 2-chloro-4-(trifluoromethyl)benzenesulfonyl chloride as starting compounds. The crude product is purified by crystallization from EA and diethyl ether to yield the title compound.