Berkeleydione

(1R,2S,12S,14R,16S)-16-Hydroxy-2,6,6,11,14,16-hexaméthyl-18-méthylène-8,15,17-trioxo-7-oxatétracyclo[12.3.1.0~2,12~.0~5,10~]octadéca-4,10-diène-1-carboxylate de méthyle

7,11-Methanocycloocta[4,5]cyclohepta[1,2-c]pyran-11(1H)-carboxylic acid, 3,4,5a,6,7,8,9,10,11a,12-decahydro-9-hydroxy-1,1,5,7,9,11a-hexamethyl-14-methylene-3,8,10-trioxo-, methyl ester, (5aS,7R,9S,11R ,11aS)-

7,11-methanocycloocta[4,5]cyclohepta[1,2-c]pyran-11(1H)-carboxylic acid, 3,4,5a,6,7,8,9,10,11a,12-decahydro-9-hydroxy-1,1,5,7,9,11a-hexamethyl-14-methylene-3,8,10-trioxo-, methyl ester, (5aS,7R,9S,11R,11aS)-

Berkeleydione

[Wiki]

Methyl (1R,2S,12S,14R,16S)-16-hydroxy-2,6,6,11,14,16-hexamethyl-18-methylene-8,15,17-trioxo-7-oxatetracyclo[12.3.1.0~2,12~.0~5,10~]octadeca-4,10-diene-1-carboxylate

methyl (5aS,7R,9S,11R,11aS)-9-hydroxy-1,1,5,7,9,11a-hexamethyl-14-methylidene-3,8,10-trioxo-3,4,5a,6,7,8,9,10,11a,12-decahydro-7,11-methanocycloocta[4,5]cyclohepta[1,2-c]pyran-11(1H)-carboxylate

Methyl-(1R,2S,12S,14R,16S)-16-hydroxy-2,6,6,11,14,16-hexamethyl-18-methylen-8,15,17-trioxo-7-oxatetracyclo[12.3.1.0~2,12~.0~5,10~]octadeca-4,10-dien-1-carboxylat