InChI=1/C19H26N4O3/c1-12-5-4-8-23(10-12)19(2,3)11-20-18(26)21-13-6-7-14-15(9-13)17(25)22-16(14)24/h6-7,9,12H,4-5,8,10-11H2,1-3H3,(H2,20,21,26)(H,22,24,25)/p+1/t12-/m1/s1/fC19H27N4O3/h20-23H/q+1 2196A88CD3F9981E