InChI=1/C15H23N5O/c1-4-20(9-15(21)17-10(2)3)8-14-18-12-6-5-11(16)7-13(12)19-14/h5-7,10H,4,8-9,16H2,1-3H3,(H,17,21)(H,18,19)/f/h17,19H	CE27ABABCCB17DD4