InChI=1/C18H17N3O/c22-16-7-3-6-15-17(16)18(12-8-10-19-11-9-12)21-14-5-2-1-4-13(14)20-15/h1-2,4-5,8-11,18,20-21H,3,6-7H2/t18-/m0/s1 608D1DD08ECBEA0E