苯丙炔醛 、 benzyl 3-amino-3-phenyl-2-propenoate 、 (4R,5R)-(5-benzyloxymethyl-2,2-dimethyl-1,3-dioxolan-4-yl)methyl acetoacetate 以
乙醇 为溶剂,
以25%的产率得到5-benzyl 3-(4'R,5'R)-(5-benzyloxymethyl-2,2-dimethyl-1,3-dioxolan-4-ylmethyl) 4-(R)-2-methyl-6-phenyl-4-phenylethynyl-1,4-dihydropyridine-3,5-dicarboxylate