上游原料
(1R)-1-Phenylethylamine; (1R)-1-Phenyl-1-ethanamine.; L-alpha-Phenylethylamineethyl (E)-2-butyryl-3-ethoxy-2-propenoate2-methoxy-3-pyridinamineethyl (Z)-2-butyryl-3-[(2-methoxy-3-pyridinyl)amino]-2-propenoate3-butyryl-8-methoxy[1,7]naphthyridin-4(1H)-one8-methoxy-4-[[methyl(dimethylene)-lambda(6)-sulfanyl]oxy]-3-(1-propylvinyl)[1,7]naphthyridine
