Cl[C:2]1[N:7]=[C:6]([S:8][CH2:9][CH2:10][CH3:11])[N:5]=[C:4]([N:12]2[CH2:17][CH2:16][O:15][CH2:14][CH2:13]2)[C:3]=1[N+:18]([O-:20])=[O:19].[Cl:21][C:22]1[CH:28]=[CH:27][CH:26]=[CH:25][C:23]=1[NH2:24].C(N(CC)C(C)C)(C)C>C(O)(C)C>[Cl:21][C:22]1[CH:28]=[CH:27][CH:26]=[CH:25][C:23]=1[NH:24][C:2]1[C:3]([N+:18]([O-:20])=[O:19])=[C:4]([N:12]2[CH2:17][CH2:16][O:15][CH2:14][CH2:13]2)[N:5]=[C:6]([S:8][CH2:9][CH2:10][CH3:11])[N:7]=1A mixture of the product from step (i) (1 g), 2-chloroaniline (0.4 g) and N,N-diisopropylethylamine (0.404 g) in isopropylalcohol (12ml) was heated at 55° C. for 14 h. The mixture was cooled and the isopropylalcohol decanted off. Yield 0.82 g
불러오는 중…