InChI=1/C18H20N2O4/c21-15-11-13-10-14(9-12-1-4-20(15)16(12)13)17(22)19-5-2-18(3-6-19)23-7-8-24-18/h9-10H,1-8,11H2	38A6D7D9E49983F4