5-oxoundecanedioic acid

tert-butyl 6-dimethoxyphosphoryl-5-oxohexanoate

3-溴-6,7,8,9-四氢-5H-苯并环庚酮

5-氧代十三烷酸甲酯

2-(4,7-dimethoxyhept-5-ynyl)-5-ethoxy-4-methyl-1,3-oxazole