(1S,2R)-2-phthalimidocyclopentane-1-carboxylic acid

5,5-二甲氧基戊醛

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

(-)-4-aza-3-oxa-4-benzyl-2-spiro(1',3'-dithiane-[1'S,3'S]-1',3'-dioxo)-[5R,9S]-bicyclo[3.3.0] octane

1-环戊烯甲醛