披针叶五味子二内酯F

(2S)-2-[(3R,3aR,5aR,7R,8S,10aS,10bS)-8-[(2R)-1,2-dihydroxypropan-2-yl]-3a,10b-dimethyl-5'-oxospiro[2,3,4,5,5a,6,8,9,10,10a-decahydro-1H-cyclohepta[e]indene-7,2'-oxolane]-3-yl]propanoic acid