methyl 2-methyl-1-(4-methylbenzyl)-4-phenyl-1,4-dihydropyridine-3-carboxylate 、
3-[(4-Nitrophenyl)methylideneamino]chromen-2-one 在
ytterbium(III) triflate 作用下,
以
乙腈 为溶剂,
反应 3.0h,
以0.571 g的产率得到methyl 2-methyl-1-(4-methylbenzyl)-5-(4-nitrophenyl)-7-oxo-4-phenyl-4,4a,5,6,7,12c-hexahydro-1H-chromeno[3,4-h][1,6]naphthyridine-3-carboxylate