InChI=1S/C27H38O8/c1-2-20(28)16-12-10-8-6-4-3-5-7-9-11-14-19-15-13-17-21(18-19)34-27-24(31)22(29)23(30)25(35-27)26(32)33/h2,6,8,12-13,15-18,20,22-25,27-31H,1,3-5,7,9-11,14H2,(H,32,33)/b8-6+,16-12+