Bakkenolide L

(-)-Bakkenolide L

(1'R,3R,7'aβ)-1'β,7'α-Diacetoxy-3'aβ,4'β-dimethyl-4-methylenespiro[oxolane-3,2'-hydrindane]-2-one

(2R,3aα)-2'-Oxo-4'-methylene-7α,7aα-dimethylspiro[hydrindane-2,3'-oxolane]-3α,4β-diol 3,4-diacetate

(1R,2R,3aβ,4β,7α,7aβ)-1β,7-Bis(acetyloxy)-1,3,3a,4,5,6,7,7a,4',5'-decahydro-3a,4-dimethyl-4'-methylenespiro[2H-indene-2,3'(2'H)-furan]-2'-one