3-[(4-Fluorophenyl)methylideneamino]chromen-2-one 、 methyl 1-benzyl-2-methyl-4-phenyl-1,4-dihydropyridine-3-carboxylate 在
ytterbium(III) triflate 作用下,
以
乙腈 为溶剂,
反应 5.0h,
以0.51 g的产率得到methyl 1-benzyl-5-(4-fluorophenyl)-2-methyl-7-oxo-4-phenyl-4,4a,5,6,7,12c-hexahydro-1H-chromeno[3,4-h][1,6]naphthyridine-3-carboxylate