InChI=1S/C19H25N5O2/c1-4-15(10-25)21-19-22-17-16(20-12-24(17)13(2)3)18(23-19)26-11-14-8-6-5-7-9-14/h5-9,12-13,15,25H,4,10-11H2,1-3H3,(H,21,22,23)/t15-/m1/s1