InChI=1S/C25H26N8O4/c1-3-4-12-32-20-21(29-24(32)31-11-7-8-15(26)13-31)30(2)25(37)33(22(20)34)14-18-27-17-10-6-5-9-16(17)19(28-18)23(35)36/h5-6,9-10,15H,7-8,11-14,26H2,1-2H3,(H,35,36)/t15-/m1/s1