InChI=1/C20H23N5O3/c1-12(2)19-22-16(9-21)20(28-19)24-23-18(27)15-8-17(26)25(11-15)10-14-6-4-13(3)5-7-14/h4-7,12,15,24H,8,10-11H2,1-3H3,(H,23,27)/t15-/m1/s1/f/h23H 4DB940FCFD9812AA