InChI=1/C21H21N5O4/c1-9-7-20(2,3)26-15-11(9)5-10(30-4)6-12(15)21(19(26)29)13(8-22)16(23)25-18(28)14(21)17(24)27/h5-7,13,28H,1-4H3,(H2,23,25)(H2,24,27)/t13-,21+/m0/s1/f/h28h,25H,23-24H2 E7FB0137CF4967ED