InChI=1S/C27H35NO10/c1-17(15-35-27-24(32)22(30)23(31)25(38-27)26(33)34)14-28-21(29)10-8-6-4-2-3-5-7-9-18-11-12-19-20(13-18)37-16-36-19/h4,6-13,17,22-25,27,30-32H,2-3,5,14-16H2,1H3,(H,28,29)(H,33,34)/b6-4+,9-7+,10-8+