(2R,7a′S,9a′R)-6′,6′-Dimethyl-3′,7′-dioxo-1′,5′,6′,7′,7a′,9a′-hexahydrospiro[oxirane-2,4′-pentaleno[1,6a-c]pyran]-9′-carboxylic acid

(2R,7a′S,9a′R)-6′,6′-Dimethyl-3′,7′-dioxo-1′,5′,6′,7′,7a′,9a′-hexahydrospiro[oxirane-2,4′-pentaleno[1,6a-c]pyran]-9′-carboxylic acid

Spiro[oxirane-2,4′(3′H)-pentaleno[1,6a-c]pyran]-9′-carboxylic acid, 1′,5′,6′,7′,7′a,9′a-hexahydro-6′,6′-dimethyl-3′,7′-dioxo-, (2R,7a′S,9a′R)-

67055-57-6

Pentalenolactone G

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′alpha,4′aalpha,6′abeta,9′aS*))-