InChI=1/C19H25N5O2/c1-13-8-14(2)11-24(10-13)18(25)16-6-4-5-7-17(16)22-19(26)21-15-9-20-23(3)12-15/h4-7,9,12-14H,8,10-11H2,1-3H3,(H2,21,22,26)/t13-,14-/m1/s1/f/h21-22H 4B94209A5E87FD27