(5aR,7aS,8R,10aS,11aR,11bS,12S)-8-(2-hydroxy-5-oxo-2,5-dihydrofuran-3-yl)-1,1,5a,7a,11b-pentamethyl-3,10-dioxo-1,3,5a,5b,6,7,7a,8,10,10a,11b,12,13,13a-tetradecahydrooxireno[4,4a]isochromeno[6,5-g][2]b 7-Deoxo-7beta-acetoxykihadanin A InChI=1/C28H34O10/c1-13(29)34-17-12-16-24(2,3)37-18(30)8-9-25(16,4)15-7-10-26(5)20(14-11-19(31)35-22(14)32)36-23(33)21-28(26,38-21)27(15,17)6/h8-9,11,15-17,20-22,32H,7,10,12H2,1-6H3/t15?,16?,17-,20-,21+,22?,25+,26-,27-,28+/m0/s oxireno[4',5']pyrano[4',3':5,6]naphth[2,1-c]oxepin-3,10(1H,10aH)-dione, 12-(acetyloxy)-8-(2,5-dihydro-2-hydroxy-5-oxo-3-furanyl)-5a,5b,6,7,7a,8,11b,12,13,13a-decahydro-1,1,5a,7a,11b-pentamethyl-, (5aR