InChI=1/C18H18N2O4/c1-11-7-8-13(9-12(11)2)19-17(21)18(22)20-16-10-23-14-5-3-4-6-15(14)24-16/h3-9,16H,10H2,1-2H3,(H,19,21)(H,20,22)/t16-/m0/s1/f/h19-20H	8D19CF6C5874459F