InChI=1S/C26H31N3O4/c1-6-24(2,3)26(14-18-22(31)29-11-7-8-19(29)21(30)27-18)16-12-15-9-10-25(4,5)33-20(15)13-17(16)28-23(26)32/h6,9-10,12-13,18-19H,1,7-8,11,14H2,2-5H3,(H,27,30)(H,28,32)/t18-,19-,26-/m0/s1