[NH2:1][C:2]1[C:11]2[O:10][C:9](=[O:12])[C:8]([NH:13][C:14](=[O:16])[CH3:15])=[CH:7][C:6]=2[CH:5]=[CH:4][CH:3]=1.Cl[CH2:18][CH2:19][NH:20][CH2:21][CH2:22]Cl>>[N:1]1([C:2]2[C:11]3[O:10][C:9](=[O:12])[C:8]([NH:13][C:14](=[O:16])[CH3:15])=[CH:7][C:6]=3[CH:5]=[CH:4][CH:3]=2)[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]1Step 4 was the alkylation of N-(8-amino-2-oxo-2H-1-benzopyran-3-yl)-acetamide (4*) with bis-chloroethylamine yielding N-(8-(1-piperazinyl)-2-oxo-2H-1-benzopyran-3-yl-)acetamide (5*).
Wird geladen…