1-N-Boc-4-(2-叔丁氧基-2-氧代乙基)哌嗪

(4-氧代1-哌啶-)乙酸盐酸盐

tert-butyl 2-ethoxycarbothioylsulfanylacetate

2-(4-甲酰基苯氧基)乙酸叔丁酯

L-天冬氨酸-4-叔丁基酯