InChI=1/C16H23N3O2/c17-14(20)8-11-19(12-13-6-2-1-3-7-13)15(21)16(18)9-4-5-10-16/h1-3,6-7H,4-5,8-12,18H2,(H2,17,20)/p+1/fC16H24N3O2/h18H,17H2/q+1 B9B6A0F22A1EB6E6