延命草素 (3776-39-4)

(1S,4S,6S,8R,9R,12S,13S,16R)-6,9-Dihydroxy-7,7-dimethyl-17-methylene-3,10-dioxapentacyclo[14.2.1.0.0.0]nonadecane-2,18-dione;

5H-5a,8-Methano-11H-cyclohepta[c]furo[3,4-e][1]benzopyran-5,6(7H)-dione, decahydro-2,13-dihydroxy-1,1-dimethyl-7-methylene-, (2S,3aS,5aS,8R,10aS,10bS,13R,13aR)-;

5H-5a,8-Methano-11H-cyclohepta(c)furo(3,4-e)(1)benzopyran-5,6(7H)-dione, decahydro-2,13-dihydroxy-1,1-dimethyl-7-methylene-, (2S,3as,5as,7R,8R,10aS,10bS,13R,13aR)-;