1-[(2R,3S,4S,5S)-3-hydroxy-4,5-bis(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione

2-[(4-氯苯基)-羟基甲基]-丙烯酸甲酯

5-氧代-己酸甲酯

4-乙酰基-5-羰基己酸甲酯

4,4-(diacetyl)heptanedioic acid dimethyl ester