InChI=1/C15H21N5O/c1-3-14-9-13(6-7-21-14)17-12-4-5-15(11(2)8-12)20-10-16-18-19-20/h4-5,8,10,13-14,17H,3,6-7,9H2,1-2H3/t13-,14-/m0/s1 2679D4CDE0A430D7