Table 1. Antitubercular activity of synthesized compounds (4a–4n) against Mycobacterium tuberculosis (H37 RV strain): ATCC no. 27294.

Compound	MIC (μg mL−1)
4a	3.12
4b	3.12
4c	3.12
4d	6.25
4e	6.25
4f	6.25
4g	12.5
4h	6.25
4i	12.5
4j	12.5
4k	6.25
4l	6.25
4m	12.5
4n	6.25
Isoniazid	1.6
Ethambutol	1.6
Pyrazinamide	3.12
Rifampicin	0.8
Streptomycin	0.8