2-hept-3-ynoxyoxane

5-hydroxy-2-(oxan-2-yloxymethyl)pyran-4-one

2-[12-(oxan-2-yloxy)dodeca-2,10-diynoxy]oxane

2-[2-(bromomethyl)prop-2-enoxy]oxane

2-phenyl-3,4-dihydro-2H-pyran