InChI=1/C16H19BrN2O2/c1-9(16(2,3)4)18-12-13(15(21)14(12)20)19-11-7-5-10(17)6-8-11/h5-9,20-21H,1-4H3/t9-/m1/s1 EA7D7B20706C35AF