InChI=1/C18H17N3O3/c1-10-4-6-13-12(8-10)16(21-20-13)17(22)19-11-5-7-14-15(9-11)24-18(2,3)23-14/h4-9H,1-3H3,(H,19,22)(H,20,21)/f/h19-20H 6FD7E60FFA8BB4C1