InChI=1/C18H23N3O4/c1-18(2,3)25-17(24)20-15(16(22)23)9-14-11-21(12-19-14)10-13-7-5-4-6-8-13/h4-8,11-12,15H,9-10H2,1-3H3,(H,20,24)(H,22,23)/t15-/m1/s1/f/h19-20H 20221DFD8B680AE0