InChI=1/C18H20N2O4/c1-24-16-5-3-14(4-6-16)17(22)13-20-10-7-15(8-11-20)18(23)19-9-2-12-21/h3-8,10-11,21H,2,9,12-13H2,1H3/p+1/fC18H21N2O4/h19H/q+1	E3ED3AC6B0C348A8