InChI=1/C19H23N5O3/c1-14-20-10-12-24(14)13-11-21-17(25)4-3-5-18-22-19(23-27-18)15-6-8-16(26-2)9-7-15/h6-10,12H,3-5,11,13H2,1-2H3,(H,21,25)/p+1/fC19H24N5O3/h20-21H/q+1 28D518351BB547C4