((R)-1-((r)-1-苯基乙基)吡咯烷-3-基)甲醇

6-环丁基-3,6-二氮杂双环[3.2.1]-2-辛酮

1-(4-羟基苯基)-5-氧代-3-吡咯烷羧酸甲酯

dimethyl 2-[(4-methoxyphenyl)methylidene]butanedioate

methyl 2-oxo-6-(trifluoromethyl)pyran-4-carboxylate