3-Amino-2-carbamoyl-4-(1H-indol-3-yl)-6-phenyl-thieno[2,3-b]pyridine-5-carboxylic acid ethyl ester 在
盐酸 、 sodium nitrite 作用下,
反应 1.0h,
以82%的产率得到ethyl 13-(1H-indol-3-yl)-6-oxo-11-phenyl-8-thia-3,4,5,10-tetrazatricyclo[7.4.0.02,7]trideca-1(13),2(7),4,9,11-pentaene-12-carboxylate