2-methyl-3-methylene-2-(4-methylpent-3-enyl)norbornane

6-methyl-5-methylidene-6-(4-methylpent-3-enyl)bicyclo[2.2.1]heptane

(1S-exo)-2-methyl-3-methylene-2-(4-methyl-3-pentenyl)bicyclo[2.2.1]heptane