ethyl 4-(8-sec-butyl-3-(methoxycarbonyl)-2-oxo-2H-chromen-6-yl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate
ethyl 4-(8-sec-butyl-3-(methoxycarbonyl)-2-oxo-2h-chromen-6-yl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate