Synonyms: Butanoicacid, 3-[[(1,1-dimethylethoxy)carbonyl]amino]-4-[(2,5-dioxo-1-pyrrolidinyl)oxy]-4-oxo-,1,1-dimethylethyl ester, (3S)- (9CI);Butanoic acid,3-[[(1,1-dimethylethoxy)carbonyl]amino]-4-[(2,5-dioxo-1-pyrrolidinyl)oxy]-4-oxo-,1,1-dimethylethyl ester, (S)-;(2,5-dioxopyrrolidin-1-yl) tert-butyl (2S)-2-(tert-butoxycarbonylamino)butanedioate;Boc-Asp(OtBu)-O-(NHS);Boc-Asp(OtBu)-OSu;Boc-L-aspartic acid 4-(tert-butyl) 1-(hydroxysuccinimide) ester;Boc-L-aspartic acid 4-(tert-butyl) 1-(hydroxysuccinimide) ester;