InChI=1S/C22H23N3O4/c1-3-14(2)22(28)21-23-19-16(11-7-8-12-29-19)20(27)25(21)17(18(26)24-22)13-15-9-5-4-6-10-15/h4-12,14,17,28H,3,13H2,1-2H3,(H,24,26)/t14?,17-,22-/m0/s1