29880-22-6
N-苄氧羰基-DL-天冬酰胺
→
~77%
84767-67-9
Benzyl (2,5-dioxo-3-pyrrolidinyl)carbamate
91807-59-9
(S)-N-(2,5-二氧代四氢呋喃-3-基)-2-苯氧基乙酰胺