(2,5-dioxopyrrolidin-1-yl) pyridine-4-carboxylate

(2,5-dioxopyrrolidin-1-yl) 2-[2-(2-methoxyethoxy)ethoxy]acetate

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

2-甲基-2-丙基[2-({[(2,5-二氧代-1-吡咯烷基)氧基]羰基}氨基)乙基]氨基甲酸酯

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