InChI=1/C16H17N3O/c1-3-13(20)16-15(12-4-7-17-8-5-12)18-14-10-11(2)6-9-19(14)16/h4-10,13,20H,3H2,1-2H3/t13-/m1/s1 B7147B21C6432FE4