InChI=1/C18H19N3O2/c1-2-15-17-14(11-16(23)19-18(17)21-20-15)13-8-6-12(7-9-13)5-3-4-10-22/h6-9,14,18,22H,2,4,10-11H2,1H3,(H,19,23)/t14-,18-/m0/s1/f/h19H 41A73E63EB3A7C13