InChI=1/C20H22N4O4/c1-9-15(11(3)25)17(23-19(27)21-9)13-5-7-14(8-6-13)18-16(12(4)26)10(2)22-20(28)24-18/h5-8,17-18H,1-4H3,(H2,21,23,27)(H2,22,24,28)/t17-,18-/m0/s1/f/h21-24H 80991D5DA9A21F5F