InChI=1/C18H19N3O3/c1-23-13-5-7-16(21-9-3-2-4-10-21)15(11-13)20-18(22)17-8-6-14(12-19)24-17/h5-8,11H,2-4,9-10H2,1H3,(H,20,22)/p+1/fC18H20N3O3/h20-21H/q+1 A8C7865AC7A2B210