InChI=1S/C27H28O12/c1-36-21-12-16(4-8-18(21)29)6-10-24(33)39-25-20(31)13-27(35,26(34)37-2)14-22(25)38-23(32)9-5-15-3-7-17(28)19(30)11-15/h3-12,20,22,25,28-31,35H,13-14H2,1-2H3/b9-5-,10-6-