InChI=1S/C23H35NO5/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-18-16-17-19(25)21(26)20(18)22(27)24-23(28)29/h7-8,16-17,25-26H,2-6,9-15H2,1H3,(H,24,27)(H,28,29)/b8-7+