[NH:1]1[C:5]2=[N:6][CH:7]=[C:8]([O:10][C:11]3[CH:20]=[C:19](F)[CH:18]=[CH:17][C:12]=3[C:13]([O:15][CH3:16])=[O:14])[CH:9]=[C:4]2[CH:3]=[CH:2]1.[NH:22]1[CH2:27][CH2:26][NH:25][CH2:24][CH2:23]1.O>CS(C)=O>[NH:1]1[C:5]2=[N:6][CH:7]=[C:8]([O:10][C:11]3[CH:20]=[C:19]([N:22]4[CH2:27][CH2:26][NH:25][CH2:24][CH2:23]4)[CH:18]=[CH:17][C:12]=3[C:13]([O:15][CH3:16])=[O:14])[CH:9]=[C:4]2[CH:3]=[CH:2]1A mixture of EXAMPLE 3H (20.5 g) and piperazine (37.0 g) in dimethylsulfoxide (200 mL) was heated to 110° C. for 24 hours, and the mixture was allowed to cool to room temperature. The mixture was poured into water (1 L), extracted thee times with dichloromethane, and the combined extracts were washed with 2× water, and brine and filtered and concentrated to give the pure product.
Wird geladen…