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2,7,7-trimethylbicyclo[4.2.2]decane 2,2,7-trimethylbicyclo[4.2.2]decane 2,2,7-triethylbicyclo[4.2.2]decane 2,2,7-trimethylbicyclo[4.4.2]decane 2,7,7-trimethylbicyclo[4.4.2]decane 3-sec-butyl-2-ethylbicyclo[3.1.0]heptane 3-sec-butyl-2-ethylbicyclo[3.1] hexane 3-sec-butyl-2-ethylbicyclo[1.0] hexane 2-sec-butyl-3-ethylbicyclo[3.1.0] hexane 3-sec-butyl-2-methylbicyclo[3.1.0] hexane 2,2-dimethylbicyclo[2.2.2] octane 2,2-methylbicyclo[2.2.2] octane 2,2-dimethylbicyclo[2.2.2]nonane 2,2-dimethylbicyclo[1.2.3]octane 2,2-diethylbicyclo[2.2.2] hexane