上游原料
1-(tert-butyl) 2-ethyl (2S)-5-oxo-1,2-pyrrolidinedicarboxylate(R)-(-)-Glutamic acid; (R)-2-Aminoglutaric acid; D-(+)-Glutamic acid; D-2-Aminoglutaric acid; D-glutamic acidethyl (2R)-5-oxo-2-pyrrolidinecarboxylate2-(bromomethyl)-1-benzothiophene1-(tert-butyl) 2-ethyl (2R,4R)-4-(1-benzothiophen-2-ylmethyl)-5-oxo-1,2-pyrrolidinedicarboxylate(2R,4R)-2-(1-benzothiophen-2-ylmethyl)-4-[(tert-butoxycarbonyl)amino]pentanedioic acid
