8,9-Dichloro-4-methoxy-2,3,6a,9a-tetrahydrocyclopenta[c]furo[3′,2′:4,5]furo[2,3-h]chromene-1,11-dione

8,9-Dichlor-4-methoxy-2,3,6a,9a-tetrahydrocyclopenta[c]furo[3′,2′:4,5]furo[2,3-h]chromen-1,11-dion

8,9-Dichloro-4-methoxy-2,3,6a,9a-tetrahydrocyclopenta[c]furo[3′,2′:4,5]furo[2,3-h]chromene-1,11-dione

8,9-Dichloro-4-méthoxy-2,3,6a,9a-tétrahydrocyclopenta[c]furo[3′,2′:4,5]furo[2,3-h]chromène-1,11-dione

Cyclopenta[c]furo[3′,2′:4,5]furo[2,3-h][1]benzopyran-1,11-dione, 8,9-dichloro-2,3,6a,9a-tetrahydro-4-methoxy-

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