InChI=1S/C20H24N4O3/c1-13(22-18(25)12-21)20(27)24-10-4-7-17(24)19(26)23-16-9-8-14-5-2-3-6-15(14)11-16/h2-3,5-6,8-9,11,13,17H,4,7,10,12,21H2,1H3,(H,22,25)(H,23,26)/t13-,17-/m0/s1