InChI=1S/C18H21N5O2/c19-13-11-23(10-12(13)17(24)22-7-3-4-8-22)18(25)16-9-20-14-5-1-2-6-15(14)21-16/h1-2,5-6,9,12-13H,3-4,7-8,10-11,19H2/t12-,13+/m1/s1