7-[3-(2-hydroxyethoxy)-5-oxocyclopenten-1-yl]heptanoic acid

2-(1,3-dioxolan-2-yl)-4-(3-nitrophenyl)pyridine

2,2,7,7-四丁基-1,3,6,8,2,7-四氧杂二锡杂环癸烷

1-(2-hydroxyethoxy)octan-2-ol

2-(2-bromocyclohept-2-en-1-yl)oxyethanol