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