InChI=1/C19H19N3O6/c1-10-15-13(23)8-19(2,3)9-14(15)28-16(10)18(25)21-20-17(24)11-4-6-12(7-5-11)22(26)27/h4-7H,8-9H2,1-3H3,(H,20,24)(H,21,25)/f/h20-21H 3A65802EEDBF1CF4