InChI=1/C18H18N2O3/c1-11-5-3-4-6-14(11)17-10-16(19-20(17)12(2)21)15-8-7-13(22)9-18(15)23/h3-9,17,22-23H,10H2,1-2H3/t17-/m0/s1 E684429787B6F793