InChI=1/C21H26N6O4/c1-14(2)31-13-16(28)12-27-17-18(26(3)21(30)24-19(17)29)23-20(27)25-22-11-7-10-15-8-5-4-6-9-15/h4-11,14,16,28H,12-13H2,1-3H3,(H,23,25)(H,24,29,30)/b10-7+,22-11+/t16-/m0/s1/f/h24-25H 81DCC3760F88B4BA