InChI=1/C18H17N5O4/c1-24-13-7-10(8-14(25-2)16(13)26-3)11-9-15-21-17(12-5-4-6-27-12)22-23(15)18(19)20-11/h4-9H,1-3H3,(H2,19,20)/f/h19H2 CA97E7C98F5FA26D