InChI=1S/C31H37N3O11/c35-23-11-7-19-5-10-21(44-31-28(40)26(38)27(39)29(45-31)30(41)42)22(17-19)43-20-8-3-18(4-9-20)6-12-24(36)34-25(37)13-16-32-14-1-2-15-33-23/h3-12,17,25-29,31-32,37-40H,1-2,13-16H2,(H,33,35)(H,34,36)(H,41,42)/b11-7-,12-6-