N-甲酰基-4-哌啶甲醇

2-formyl-4,4-dimethoxybutanenitrile

(2-氨基-6-氧代-1,6-二氢-嘧啶-5-基)-乙酸

N-(2-ethenoxyethyl)formamide

N-(2-sulfanylethyl)formamide