Methyl 3-[(1S,1′S,2R,4S,4′R,5′S,6′S,8′S,9′S,10′R)-8′-acetoxy-4-ethyl-6′-isopropenyl-1,5′,10′-trimethyl-3′-oxo-3,7,15′-trioxaspiro[bicyclo[2.2.1]heptane-2,13′-tetracyclo[7.4.2.0~1,10~.0~4,9~]pentadecan ]-5′-yl]propanoate

Methyl 3-[(1S,1′S,2R,4S,4′R,5′S,6′S,8′S,9′S,10′R)-8′-acetoxy-4-ethyl-6′-isopropenyl-1,5′,10′-trimethyl-3′-oxo-3,7,15′-trioxaspiro[bicyclo[2.2.1]heptane-2,13′-tetracyclo[7.4.2.0~1,10~.0~4,9~]pentadecan ]-5′-yl]propanoate

Ganoboninketal C