InChI=1/C18H23N3O2/c22-17(21-11-13-5-1-2-6-14(13)12-21)15-9-16(19-10-15)18(23)20-7-3-4-8-20/h1-2,5-6,15-16,19H,3-4,7-12H2/p+1/t15-,16-/m0/s1/fC18H24N3O2/h19H/q+1 A11C94F9B0619D9C