InChI=1/C21H37N5O2/c1-7-16(3)25(5)14-12-22-20(27)18-10-9-11-19(24-18)21(28)23-13-15-26(6)17(4)8-2/h9-11,16-17H,7-8,12-15H2,1-6H3,(H,22,27)(H,23,28)/p+2/t16-,17+/fC21H39N5O2/h22-23,25-26H/q+2 C5A8A74E60F7E7A3