Table 5.

¹H chemical shift in ppm (observed and theoretical) of H-8, M-8, Br-8 and Cl-8.

	Experimental				Theoretical
	H-8	M-8	Br-8	Cl-8	H-8	M-8	Br-8	Cl-8
H (8)	7.96	7.92	7.96	7.97	10.18	10.26	9.99	10.06
H (7)	7.81	7.76	7.79	7.80	9.67	9.03	9.15	9.31
H (6)	7.70	7.67	7.72	7.73	9.53	9.25	9.26	9.66
H (5)	7.92	7.86	7.95	7.95	9.29	9.52	10.15	9.88
R-(3)	5.64	2.05	-		7.04	3.25	-	-
NH	7.53	6.60	7.46	7.43	6.08	5.96	6.37	6.08
H(a)	0.83	0.82	0.82	0.83	1.85	1.84	1.88	1.81
H(b)	1.24	1.25	1.24	1.27	2.09	2.16	2.11	2.15
H(c)	1.24	1.25	1.24	1.27	2.18	2.20	2.34	2.12
H(d)	1.24	1.25	1.24	1.27	2.31	2.29	2.21	2.29
H(e)	1.24	1.25	1.24	1.27	2.38	2.39	2.36	2.29
H(f)	1.24	1.25	1.24	1.27	2.39	2.33	2.50	2.33
H(g)	1.56	1.54	1.58	1.59	2.73	2.66	2.64	2.46
H(h)	3.14	3.51	3.70	3.72	3.95	4.52	4.86	4.67