Taiwanin C

5-(1,3-Benzodioxol-5-yl)furo[3',4':6,7]naphtho[2,3-d]-1,3-dioxol-6(8H)-one

6,7-(Epoxymethanoxy)-9-(1,3-benzodioxole-5-yl)-1,3-dihydronaphtho[2,3-c]furan-1-one