英文别名L-glutamic acid, N-[20-(1,1-dimethylethoxy)-1,20-dioxoeicosyl]-, 1-(1,1-dimethylethyl) ester; tBuO-C20-Glu-OtBu; (4S)-5-(tert-butoxy)-4-[20-(tert-butoxy)-20-oxoicosanamido]-5-oxopentanoic acid; 1-(1,1-Dimethylethyl) hydrogen N-[20-(1,1-dimethylethoxy)-1,20-dioxoeicosyl]-L-glutamate; C20-OTBU-GLU-OTBU; Semaglutide impurity 85; tBuO-C20-Glu(OH)-OtBu; (S)-2-(19-tert-Butoxycarbonylnonadecanoylamino)pentanedioic acid 1-tert-butyl ester; (S)-5-(t-Butoxy)-4-(20-(t-butoxy)-20-oxoicosanamido)-5-oxopentanoic acid (C20-OtBu-L-Glu-OtBu) 
