InChI=1S/C22H25N3O4/c1-12(2)9-18-19-15(14-7-6-13(29-3)10-16(14)23-19)11-22(28)21(27)24-8-4-5-17(24)20(26)25(18)22/h6-7,9-10,17-18,23,28H,4-5,8,11H2,1-3H3/t17-,18-,22+/m0/s1