InChI=1S/C26H31NO5/c1-16-15-25(2,14-12-20(16)28)13-11-17-9-10-19-21(22(17)29)26(31,18-7-5-4-6-8-18)23(32-3)24(30)27-19/h4-11,13,16,20,23,28-29,31H,12,14-15H2,1-3H3,(H,27,30)/b13-11+/t16-,20+,23+,25+,26-/m0/s1