InChI=1/C18H20N4O3/c1-4-23-13-7-6-11(8-14(13)24-5-2)16-12(9-19)17(20)25-18-15(16)10(3)21-22-18/h6-8,16,18H,4-5,20H2,1-3H3/t16-,18+/m1/s1 DEA52E8F42F28A5C