Table 1.

Elemental analyses data of the synthesized final compounds

Compound	Molecular formula	Molecular weight	Calculated (%)			Found (%)
			C	H	N	C	H	N
4a	C19H13FN4O3	364.33	62.64	3.60	15.38	62.83	3.78	15.10
4b	C19H13ClN4O3	380.78	59.93	3.44	14.71	59.64	3.08	14.89
4c	C19H13ClN4O3	380.78	59.93	3.44	14.71	60.13	3.21	14.93
4d	C19H13ClN4O3	380.78	59.93	3.44	14.71	60.30	3.70	14.84
4e	C19H13BrN4O3	425.24	53.67	3.08	13.18	53.58	2.90	13.32
4f	C19H13BrN4O3	425.24	53.67	3.08	13.18	53.79	3.21	13.35
4g	C20H15FN4O3	378.36	63.49	4.00	14.81	63.67	4.19	14.69
4h	C20H15ClN4O3	394.81	60.84	3.83	14.19	60.68	3.59	14.40
4i	C20H15ClN4O3	394.81	60.84	3.83	14.19	60.72	3.97	14.51
4j	C20H15ClN4O3	394.81	60.84	3.83	14.19	61.13	4.09	14.01
4k	C20H15BrN4O3	439.26	54.69	3.44	12.75	54.38	3.35	12.98
4l	C20H15BrN4O3	439.26	54.69	3.44	12.75	54.82	3.71	12.53