InChI=1S/C23H25NO11/c25-13-4-1-11(2-5-13)7-8-24-17(28)6-3-12-9-14(26)15(27)10-16(12)34-23-20(31)18(29)19(30)21(35-23)22(32)33/h1-6,9-10,18-21,23,25-27,29-31H,7-8H2,(H,24,28)(H,32,33)/b6-3+