(1R,3aS,4R,5R,6R,9aR,10aS)-6-({(1S,2R,4S,5S,6R,8S,9S)-5-Hydroxy-2-(methoxymethyl)-9-methyl-9-[(2S)-2-oxiranyl]-3,7,10,11-tetraoxatricyclo[6.2.1.0~1,6~]undec-4-yl}oxy)-7-isopropyl-1-(methoxymethyl)-4,9 a-dimethyl-1,2,3,3a,4,5,6,8,9,9a,10,10a-dodecahydrodicyclopenta[a,d][8]annulene-1,5-diol (non-preferred name)

(1R,3aS,4R,5R,6R,9aR,10aS)-6-({(1S,2R,4S,5S,6R,8S,9S)-5-Hydroxy-2-(methoxymethyl)-9-methyl-9-[(2S)-2-oxiranyl]-3,7,10,11-tetraoxatricyclo[6.2.1.0~1,6~]undec-4-yl}oxy)-7-isopropyl-1-(methoxymethyl)-4,9 a-dimethyl-1,2,3,3a,4,5,6,8,9,9a,10,10a-dodecahydrodicyclopenta[a,d][8]annulen-1,5-diol (non-preferred name)

(1R,3aS,4R,5R,6R,9aR,10aS)-6-({(1S,2R,4S,5S,6R,8S,9S)-5-Hydroxy-2-(methoxymethyl)-9-methyl-9-[(2S)-2-oxiranyl]-3,7,10,11-tetraoxatricyclo[6.2.1.0~1,6~]undec-4-yl}oxy)-7-isopropyl-1-(methoxymethyl)-4,9 a-dimethyl-1,2,3,3a,4,5,6,8,9,9a,10,10a-dodecahydrodicyclopenta[a,d][8]annulene-1,5-diol (non-preferred name)

(1R,3aS,4R,5R,6R,9aR,10aS)-6-({(1S,2R,4S,5S,6R,8S,9S)-5-Hydroxy-2-(méthoxyméthyl)-9-méthyl-9-[(2S)-2-oxiranyl]-3,7,10,11-tétraoxatricyclo[6.2.1.0~1,6~]undéc-4-yl}oxy)-7-isopropyl-1-(méthoxyméthyl)-4,9 a-diméthyl-1,2,3,3a,4,5,6,8,9,9a,10,10a-dodécahydrodicyclopenta[a,d][8]annulène-1,5-diol (non-preferred name)

COTYLENIN A