Synonyms: Pentanoicacid, 4-[[(1,1-dimethylethoxy)carbonyl]amino]-5-[(2,5-dioxo-1-pyrrolidinyl)oxy]-5-oxo-,phenylmethyl ester, (4S)- (9CI); Pentanoic acid,4-[[(1,1-dimethylethoxy)carbonyl]amino]-5-[(2,5-dioxo-1-pyrrolidinyl)oxy]-5-oxo-,phenylmethyl ester, (S)-; Succinimide, N-[(N-carboxy-L-a-glutamyl)oxy]-, benzyl N-tert-butylester (8CI); L-Glutamic acid, pentanoic acid deriv.; NSC 334338