1-((2s,4s,5r)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5
acetoxy(tetrahydrofuran-2-yl)methyl cyclopentanecarboxylate
n-ethyl-n-(tetrahydrofuran-3-yl)piperidin-4-amine
5-fluoro-1-((2s,3s)-3-hydroxytetrahydrofuran-2-yl)pyrimidine-2,4
tert-butyl((3s)-4-methyl-2-oxotetrahydrofuran-3-yl)carbamic acid