InChI=1/C21H25N3O3/c1-13-9-17-16(12-26-18(17)10-14(13)2)11-19(25)23-21(7-5-4-6-8-21)20-22-15(3)27-24-20/h9-10,12H,4-8,11H2,1-3H3,(H,23,25)/f/h23H EFCB208A9CDB4BCF