(5R,6S,7R)-6-(4-hydroxy-6-methyl-2-oxopyran-3-carbonyl)-7-(4-nitrophenyl)spiro[3,6,7,7a-tetrahydro-1H-pyrrolo[1,2-c][1,3]thiazole-5,2'-acenaphthylene]-1'-one 、
苄胺 以
二氯甲烷 为溶剂,
生成
methyl 12-butyl-6-[(4-methoxyphenyl)methyl]-3,3-dimethyl-1-oxo-4,12-dihydro-2H-benzimidazolo[2,1-b]quinazoline-9-carboxylate