InChI=1/C16H17N3O2/c1-10-8-11(2)14-13(9-10)15(20)16(21)19(14)7-6-18-5-4-17-12(18)3/h4-5,8-9H,6-7H2,1-3H3/p+1/fC16H18N3O2/h17H/q+1 53E2ABA3ED5E24AA