2-(2,2,2-trichloroethoxycarbonylamino)-pentanoic acid 5-allyl ester 1-benzyl ester
2-amino-pentanedioic acid 5-allyl ester 1-benzyl ester
2-Decanoylamino-pentanedioic acid 1-benzyl ester
2-decanoylamino-pentanedioic acid 5-allyl ester 1-benzyl ester
4-[(2-allyloxycarbonylamino-ethyl)-benzyl-carbamoyl]-2-(2,2,2-trichloroethoxycarbonylamino)-butyric acid methyl ester