1-(4-bromophenyl)-2-[(7-chloro-5H-[1,2,4]triazino[5,6-b]indol-3-yl)sulfanyl]ethanone;hydrobromide 在
磷酸 、 phosphorus pentoxide 作用下,
以56%的产率得到14-(4-bromophenyl)-5-chloro-12-thia-8,10,15,16-tetrazatetracyclo[7.7.0.02,7.011,15]hexadeca-1(16),2(7),3,5,8,10,13-heptaene