Aziz-ur Rehman, Asia Siddiqa, Muhammad Athar Abbasi, Sabahat Zahra Siddiqui, Samreen Gul Khan, Shahid Rasool, Syed Adnan Ali Shah.
Synthesis, spectral analysis and antibacterial activity of some novel 5- substituted-2-((6-bromo-3,4-methylenedioxybenzyl)thio)-1,3,4- oxadiazole derivatives.
Pak J Pharm Sci Jan ;31(5):1783-90.

A number of novel 5-substituted-2-((6-bromo-3,4-methylenedioxybenzyl)thio)-1,3,4-Oxadiazole derivatives (6a-l) have been synthesized to evaluate their antibacterial activity. Using aryl/aralkyl carboxylic acids (1a-l) as precursors, 5-substituted-1,3,4-Oxadiazol-2-thiols (4a-l) were yielded in good amounts. The derivatives, 4a-l, were subjected to electrophilic substitution reaction on stirring with 6-bromo-3,4-methylenedioxybenzyl chloride (5) in DMF to synthesize the required compounds. All the synthesized molecules were well characterized by IR, 1H-NMR, 13C-NMR and EIMS spectral data and evaluated for antibacterial activity against some bacterial strains of Gram-bacteria. The molecule, 6d, demonstrated the best activity among all the synthesized molecules exhibiting weak to moderate inhibition potential.

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