5-Benzoylamino-6-oxo-2-[(3-trifluoromethyl-phenylcarbamoyl)-(triphenyl-λ5-phosphanylidene)-methyl]-6H-pyran-3-carboxylic acid ethyl ester 在
sodium ethanolate 作用下,
以
乙醇 为溶剂,
反应 0.1h,
以86%的产率得到N-[2,5,7-Trioxo-6-(3-trifluoromethyl-phenyl)-8-(triphenyl-λ
5-phosphanylidene)-5,6,7,8-tetrahydro-2H-pyrano[3,2-c]pyridin-3-yl]-benzamide