6-amino-8-(4-methoxyphenyl)-N-(4-methylphenyl)-4-thia-2-azatricyclo[7.3.0.03,7]dodeca-1(9),2,5,7-tetraene-5-carboxamide 在
硫酸 、
溶剂黄146 、 sodium nitrite 作用下,
以77%的产率得到16-(4-methoxyphenyl)-5-(4-methylphenyl)-8-thia-3,4,5,10-tetrazatetracyclo[7.7.0.02,7.011,15]hexadeca-1(16),2(7),3,9,11(15)-pentaen-6-one