2-amino-9H-pyrido[2,3-b]indole-3-carboxamide 、
3-溴-2-甲基丙烯 、
2-amino-9-isopropyl-9H-pyrido[2,3-b]indole-3-carboxamide 以to afford 2-amino-9-(2-methylprop-2-en-1-yl)-9H-pyrido[2,3-b]indole-3-carboxamide (xii-a, 143 mg, 59%)的产率得到2-amino-9-(2-methylprop-2-en-1-yl)-9H-pyrido[2,3-b]indole-3-carboxamide