7-Trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid → 3-{5-[7-Trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-yl]-[1,2,4]oxadiazol-3-yl}-benzenesulfonamide
反応式
[F:1][C:2]([F:26])([F:25])[C:3]1[N:8]2[N:9]=[CH:10][C:11]([C:12](O)=O)=[C:7]2[N:6]=[C:5]([C:15]2[CH:20]=[CH:19][C:18]([C:21]([F:24])([F:23])[F:22])=[CH:17][CH:16]=2)[CH:4]=1.[OH:27][NH:28][C:29](=[NH:40])[C:30]1[CH:35]=[CH:34][CH:33]=[C:32]([S:36](=[O:39])(=[O:38])[NH2:37])[CH:31]=1>>[F:26][C:2]([F:1])([F:25])[C:3]1[N:8]2[N:9]=[CH:10][C:11]([C:12]3[O:27][N:28]=[C:29]([C:30]4[CH:31]=[C:32]([S:36]([NH2:37])(=[O:38])=[O:39])[CH:33]=[CH:34][CH:35]=4)[N:40]=3)=[C:7]2[N:6]=[C:5]([C:15]2[CH:16]=[CH:17][C:18]([C:21]([F:24])([F:23])[F:22])=[CH:19][CH:20]=2)[CH:4]=1参加物
3
実験手順
The title compound was prepared from 7-trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (example C.2) (188 mg, 0.5 mmol) and N-hydroxy-3-sulfamoyl-benzamidine [CAS-No. 9000-88-7] (161 mg, 0.75 mmol) according to general procedure II. Obtained after purification by column chromatography (dichloromethane/MeOH/NH4OH) and crystallization (ethyl acetate/MeOH/hexane) as a yellow solid (175 mg, 63%). MS (ISN) 552.8 [(M−H)−]; mp 262° C.