(2,5-dioxopyrrolidin-1-yl) 2-phenylacetate

2,5-二氧代-1-吡咯烷基N,1-二{[(2-甲基-2-丙基)氧基]羰基}-L-组氨酸酯

(2,5-dioxopyrrolidin-1-yl) 2,3-dihydroxy-5-nitrobenzoate

N-(氯乙酰氧基)琥珀酰亚胺

N-[叔丁氧羰基]-O-(苄基)-L-酪氨酸琥珀酰亚胺基酯