[CH2:1]([N:10]1[C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][C:13]=2[N:12]2[CH2:19][CH2:20][CH2:21][N:22]=[C:11]12)[C:2]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1)=[O:3].[ClH:23]>CC(C)=O>[ClH:23].[CH2:1]([N:10]1[C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][C:13]=2[N:12]2[CH2:19][CH2:20][CH2:21][N:22]=[C:11]12)[C:2]([C:4]1[CH:5]=[CH:6][CH:7]=[CH:8][CH:9]=1)=[O:3]The compound obtained in Step C is dissolved in acetone. The solution obtained is treated with concentrated hydrochloric acid. Suction-filter the precipitate and recrystallise from ethanol.
Wird geladen…