methyl 1-cyano-4-hydroxy-7-phenoxyisoquinoline-3-carboxylate 、
R-3-氨基-3-(3-吡啶基)丙酸乙酯二盐酸盐 、
sodium methylate 、
甲醇 在
silica 作用下,
反应 1.5h,
以to provide 49 mg of the desired product which的产率得到3-(R)-[(1-Cyano-4-hydroxy-7-phenoxy-isoquinoline-3-carbonyl)-amino]-3-pyridin-3-yl-propionic acid methyl ester