L-Aspartic acid β-benzyl ester is used in the synthesis of peptides with a 1,4-diazepine-2,5-dione ring structure and in development of block copolymers.
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Lei Wang, Rong Zeng; Chao Li; Renzhong Qiao; Lei Wang; Rong Zeng; Chao Li; Renzhong Qiao. Self-assembled polypeptide-block-poly(vinylpyrrolidone) as prospective drug-delivery systems. Colloids and Surfaces B: Biointerfaces. 2009, 74 (1), 284-292.