InChI=1/C14H19N3O2/c15-11-4-3-9(8-10(11)14(18)19)16-12-5-7-17-6-1-2-13(12)17/h3-4,8,12-13,16H,1-2,5-7,15H2,(H,18,19)/t12-,13-/m1/s1/f/h17H 35D52FA734E04A87