英文名称
(S)-pyrrolidine-1,2-dicarboxylic acid 2-(1R,2S)-[2-((R)-2-amino-5-tert-butoxycarbonyl-2-(dimethylaminomethyleneamino)-4-oxo-3.4,5,6,7,8-hexahydropteridin-6-yl)-1-methyl-(S)-2-(1-tert-butoxycarbonylpyrrolidine-2-carbonyloxy)ethyl] ester 1-tert-butyl ester