S-ethyl acetothioacetate 、
2-(10-methyl-10H-phenothiazin-3-ylmethylene)indane-1,3-dione 在
ammonium acetate 作用下,
以
溶剂黄146 为溶剂,
反应 0.17h,
以70%的产率得到3-(ethylthio)carbonyl-2-methyl-4-(10-methyl-10H-phenothiazin-3-yl)-5-oxo-1H-4,5-dihydroindenol[1,2-b]-pyridine