InChI=1/C18H20N2O4/c1-13-7-9-15(10-8-13)23-12-18(21)24-20-17(19)11-14-5-3-4-6-16(14)22-2/h3-10H,11-12H2,1-2H3,(H2,19,20)/p+1/fC18H21N2O4/h20H,19H2/q+1	15D1BCBBAAC1AB43