(2R,3a′S,5R,6a′S)-5-[(5S)-5-Hydroxyheptyl]-6′,6′-dimethylhexahydro-3H,5′H-spiro[furan-2,2′-furo[3,2-b]furan]-5′-one

(2R,3a′S,5R,6a′S)-5-[(5S)-5-Hydroxyheptyl]-6′,6′-dimethylhexahydro-3H,5′H-spiro[furan-2,2′-furo[3,2-b]furan]-5′-one

Spiro[furan-2(3H),2′(5′H)-furo[3,2-b]furan]-5′-one, hexahydro-5-[(5S)-5-hydroxyheptyl]-6′,6′-dimethyl-, (2R,3a′S,5R,6a′S)-

penisporolide A