InChI=1/C19H23N5O4/c1-20-17-9-8-15(24(27)28)12-16(17)19(26)22-14-6-4-13(5-7-14)21-18(25)10-11-23(2)3/h4-9,12,20H,10-11H2,1-3H3,(H,21,25)(H,22,26)/p+1/fC19H24N5O4/h21-23H/q+1 42FDC8E76ECA1AE2