3-O-ethyl 5-O-(2-phenylmethoxyethyl) 2-(diethoxymethyl)-6-methyl-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3,5-dicarboxylate 在
盐酸 作用下,
以
丙酮 为溶剂,
反应 1.5h,
以98.3%的产率得到3-O-ethyl 5-O-(2-phenylmethoxyethyl) 2-formyl-6-methyl-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3,5-dicarboxylate