InChI=1/C21H26N4O4/c1-13(14-4-6-15(7-5-14)23-21(27)24-16-8-9-16)22-20(26)25-17-10-18(28-2)12-19(11-17)29-3/h4-7,10-13,16H,8-9H2,1-3H3,(H2,22,25,26)(H2,23,24,27)/t13-/m1/s1/f/h22-25H	52EF2178B83E44AB