(2R,2'R,3R,3'S,4a'S,5'R,6'S,8a'R)-5-(3-furyl)-5',6'-dihydroxy-2-methoxy-2',4a',5'-trimethyldecahydro-2'H-spiro[furan-3,1'-naphthalen]-3'-yl rel-acetate Cascarillin E InChI=1/C23H34O7/c1-13-16(29-14(2)24)10-21(3)18(6-7-19(25)22(21,4)26)23(13)11-17(30-20(23)27-5)15-8-9-28-12-15/h8-9,12-13,16-20,25-26H,6-7,10-11H2,1-5H3/t13-,16-,17?,18+,19-,20+,21-,22-,23-/m1/s rel-(3R,4S,5R,7R,8S,9R,10S,12R,20S)-7-acetoxy-15,16,12,20-diepoxy-3,4-dihydroxy-20-methoxyneocleroda-13(16),14-diene spiro[furan-3(2H),1'(2'H)-naphthalene]-3',5',6'-triol, 5-(3-furanyl)decahydro-2-methoxy-2',4'a,5'-trimethyl-, 3'-acetate, (2S,2'S,3S,3'R,4a'R,5'S,6'R,8a'S)-