4 オオムチゴケの新三環セスキテルペンの構造

抄録

In connection with previous papers on isolation and structural determination of bazzanene, bazzanenol and δ-cuparenol, we have now isolated two additional novel sesquiterpene hydrocarbons from a liverwort, B. pompeana. These compounds were named α- and β-pompene, and their structures were respectively determined as 2,2,3,10-tetramethyl-tricyclo[5.3.1.0^<3,7>]undec-9-ene (I) and 2,2,3-trimethyl-10-methylene-tricyclo[5.3.1.0^<3,7>]undecane (XIII) on the basis of chemical and spectroscopic evidences.