InChI=1/C19H28N4O3/c1-12(2)16(22-19(20)26)17(24)21-15-8-10-23(11-9-15)18(25)14-6-4-13(3)5-7-14/h4-7,12,15-16H,8-11H2,1-3H3,(H,21,24)(H3,20,22,26)/t16-/m1/s1/f/h21-22H,20H2 5510EBA576DED673