InChI=1/C18H18N2O3/c1-12-19-14-9-17-18(23-8-7-22-17)10-15(14)20(12)11-16(21)13-5-3-2-4-6-13/h2-6,9-10,16,21H,7-8,11H2,1H3/t16-/m0/s1 CCF9F0B05D6F2B92