6'-amino-3'-methyl-1'-phenylspiro[9H-anthracene-10,4'-pyrano[2,3-c]pyrazole]-5'-carbonitrile 、 formamide 在
甲酸 作用下,
反应 5.0h,
以66%的产率得到6-methyl-4-phenylspiro[2-oxa-4,5,11,13-tetrazatricyclo[7.4.0.03,7]trideca-1(9),3(7),5,12-tetraene-8,10'-9H-anthracene]-10-one