3a,4,4a,5,8,8a,9,9a-八氢-4,9:5,8-二甲桥-1H-苯并[f]茚

Tetra-cyclopentadiene

5-降冰片烯-2-甲醇

octahydrodimethanonaphtalenedimethanol

5-降冰片烯-2,3-二甲醇