InChI=1/C19H23N5O4/c1-3-28-17-6-4-13(10-15(17)24(26)27)19-16(12-22(2)8-9-25)23-11-14(20)5-7-18(23)21-19/h4-7,10-11,25H,3,8-9,12,20H2,1-2H3/p+1/fC19H24N5O4/h22H/q+1 5E49B1656E2C7F93