InChI=1S/C22H25N3O4/c1-5-21(2,3)18-14(13-8-6-7-9-15(13)23-18)12-16-19(27)25-11-10-17(26)22(25,29-4)20(28)24-16/h5-9,12,17,23,26H,1,10-11H2,2-4H3,(H,24,28)/b16-12-/t17-,22+/m1/s1