2-(hydroxymethyl)-3,3-dimethyl-5-methoxytetrahydrofuran

6-<5-methoxy-3,3-dimethyl-2-tetrahydrofuranyl>fulvene

N,N'-bis<(2,2,2-trichloroethoxy)carbonyl>-2,3-diaza-7-<5-methoxy-3,3-dimethyl-2-tetrahydrofuranylidene>bicyclo<2.2.1>heptane