InChI=1/C18H20N4O4/c1-11-14(12(2)26-20-11)10-22-15-9-13(3-4-16(15)25-18(22)24)17(23)21-7-5-19-6-8-21/h3-4,9,19H,5-8,10H2,1-2H3 BBD11B70AC24BB23