[C:1]1([S:7](Cl)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[NH2:11][C:12]1[O:16][N:15]=[C:14]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[C:13]=1[Br:23]>>[Br:23][C:13]1[C:14]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)=[N:15][O:16][C:12]=1[NH:11][S:7]([C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1)(=[O:9])=[O:8]This compound was prepared from benzenesulfonyl chloride and 5-amino-4-bromo-3-phenylisoxazole according to the method in Example 25b in 36% yield. Recrystallization from methanol gave a yellow solid, m.p. 113-115° C.
Wird geladen…