InChI=1S/C23H25NO11/c25-13-5-1-11(2-6-13)15(27)10-24-17(28)8-4-12-3-7-14(26)9-16(12)34-23-20(31)18(29)19(30)21(35-23)22(32)33/h1-9,15,18-21,23,25-27,29-31H,10H2,(H,24,28)(H,32,33)/b8-4+