(1-氧基-2,2,5,5,-四甲基-?3-吡咯啉)甲醛

乙酸乙酯

2,2,5,5-四甲基-3-吡啉-1-氧基-3-羧酸

2,2,5,5-tetramethyl-pyrrolidinyl-1-oxyl-3-carboxylic acid chloride

乙氧甲酰基亚甲基三苯基膦