InChI=1S/C26H33N3O5/c1-18(27-26(33)34-17-21-12-7-4-8-13-21)25(32)29-15-9-14-23(29)24(31)28-22(19(2)30)16-20-10-5-3-6-11-20/h3-8,10-13,18-19,22-23,30H,9,14-17H2,1-2H3,(H,27,33)(H,28,31)/t18-,19+,22-,23-/m0/s1