InChI=1/C18H20N4O2/c1-10(2)11-4-6-12(7-5-11)15-13(8-19)17(20)24-18-16(15)14(9-23-3)21-22-18/h4-7,10,15,18H,9,20H2,1-3H3/t15-,18-/m1/s1 7EC7A70FB56276C3