InChI=1/C16H17N3O2/c17-13-7-4-8-14-15(13)18-16(11-5-2-1-3-6-11)19(14)9-12(21)10-20/h1-8,12,20-21H,9-10,17H2/t12-/m0/s1 988C3C3452BD628C