InChI=1S/C20H27N5O2/c1-14(2)10-19(26)23-16-8-9-18(21-11-16)25-12-17(22-13-25)20(27)24-15-6-4-3-5-7-15/h8-9,11-15H,3-7,10H2,1-2H3,(H,23,26)(H,24,27)