Benzoic acid, 3-(chlorosulfonyl)- → HCID 46203370, compound
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[S:27]([C:30]1[CH:31]=[C:32]([CH:36]=[CH:37][CH:38]=1)[C:33]([OH:35])=[O:34])(=[O:29])=[O:28]>>[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][N:20]([S:27]([C:30]4[CH:31]=[C:32]([CH:36]=[CH:37][CH:38]=4)[C:33]([OH:35])=[O:34])(=[O:29])=[O:28])[CH2:19][CH2:18]3)[N:16]=2)[CH:7]=[CH:8][C:9]=1[O:10][CH3:11]Participants
3
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 3-(chlorosulfonyl)benzoic acid as starting compounds. Instead of using the work-up procedure described for GP1, the following procedure is used. After the reaction has been quenched with 1 M aqueous sodium carbonate solution, the phases are separated and the aqueous phase is slightly acidified with aqueous hydrochloric acid.