(1R,2S)-2-(benzylamino)cyclopentane-1-carboxylic acid

6-硫唑嘌呤双环[3.2.0]庚烷-7-酮

5,5-二甲氧基戊醛

(-)-2-(5,5-dimethoxy-pentylidene)-[1R,3R]-1,3-dioxo-1,3-dithiane

(+)-[1R,5S][1'R,3'R]-4-benzyl-1',3'-dioxo-4-aza-3-oxabicyclo[3.3.0]octane-2-spiro-2'-(1',3'-dithiane)