[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[Cl:12])[N:8]1[CH2:13][CH2:14][NH:15][CH2:16][CH:7]1[C:6](=[O:17])[NH:5]2.[CH:18]([C:20]1[CH:25]=[CH:24][N:23]=[CH:22][CH:21]=1)=[CH2:19]>>[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[Cl:12])[N:8]1[CH2:13][CH2:14][N:15]([CH2:19][CH2:18][C:20]3[CH:25]=[CH:24][N:23]=[CH:22][CH:21]=3)[CH2:16][CH:7]1[C:6](=[O:17])[NH:5]2Treatment of 8,9-dichloro-2,3,4,4a-tetrahydro-1H-pyrazino-[1,2-a]quinoxalin-5(6H)-one (3 g.) with 5.4 g. of 4-vinylpyridine in the manner described in Example 1 gave 2.2 g. of the title compound as the dihydrochloride salt, m.p. 266°-269° C. (dec.).
Wird geladen…