InChI=1/C18H18N2O3/c1-11-6-7-15(12(2)8-11)19-16-10-17(22)20(18(16)23)13-4-3-5-14(21)9-13/h3-9,16,19,21H,10H2,1-2H3/t16-/m0/s1 97251B9D84AC9529