InChI=1/C18H25N3O2/c1-13-6-2-3-9-16(13)20-18(23)19-14-7-4-8-15(12-14)21-11-5-10-17(21)22/h4,7-8,12-13,16H,2-3,5-6,9-11H2,1H3,(H2,19,20,23)/t13-,16-/m1/s1/f/h19-20H 3362984C98A490C7