methyl,chromen,furo[2,3-h]
Furo[2,3-h]
117859-29-7(6aS,7aS,8aR,8bR)-4-methoxy-2,3,6a,7a,8a,8b-hexahydrocyclopenta[c]oxireno[4',5']furo[3',2':4,5]furo[2,3-h]chromene-1,10-dione
64267-69-2(6aS,8S,9R,9aS)-8,9-dibromo-4-methoxy-2,3,6a,8,9,9a-hexahydrocyclopenta[c]furo[3',2':4,5]furo[2,3-h]chromene-1,11-dione