| Synonyms: | pentalenolactone G;(2R,9'aS)-4',4'aα,6'aβ,7',8',9'-Hexahydro-8',8'-dimethyl-2',7'-dioxospiro[oxirane-2,1'(2'H)-pentaleno[1,6a-c]pyran]-5'-carboxylic acid;Spiro[oxirane-2,1'(2'H)-pentaleno[1,6a-c]pyran]-5'-carboxylic acid, 4',4'a,6'a,7',8',9'-hexahydro-8',8'-dimethyl-2',7'-dioxo-, [1'R-(1'α,4'aα,6'aβ,9'aS*)]- (9CI) |