上游原料
(1R)-1-Phenylethylamine; (1R)-1-Phenyl-1-ethanamine.; L-alpha-Phenylethylamineethyl chloroacetate; ethyl 2-chloroacetateethyl formateethyl 2-[[(1R)-1-phenylethyl]amino]acetateethyl 2-[formyl[(1R)-1-phenylethyl]amino]acetateethyl (Z)-2-[formyl[(1R)-1-phenylethyl]amino]-3-hydroxy-2-propenoateethyl 1-[(1R)-1-phenylethyl]-2-sulfanyl-1H-imidazole-5-carboxylate