InChI=1/C19H28N4O3/c1-12(13-6-7-15-14(8-13)9-16(24)21-15)20-17(25)10-23(5)11-18(26)22-19(2,3)4/h6-8,12H,9-11H2,1-5H3,(H,20,25)(H,21,24)(H,22,26)/t12-/m1/s1/f/h20-22H 66B40CBB2A48A72A