InChI=1S/C19H24N6O2/c1-27-15-4-2-3-14(9-15)23-19-18-13(5-8-25(18)22-12-21-19)10-24-7-6-16(20)17(26)11-24/h2-5,8-9,12,16-17,26H,6-7,10-11,20H2,1H3,(H,21,22,23)/t16-,17-/m1/s1