4-(6-methylpyridin-3-yl)pyridin-2(1H)-one   、                                                                                      
tert-butyl 7-bromo-5-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate                                                                                                                                                                                                                                                                                                          以to provide the title compound (220 mg, 58%) as a yellow/green solid的产率得到tert-butyl 5-methyl-7-(4-(6-methylpyridin-3-yl)-2-oxopyridin-1(2H)-yl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate