Synthesis and molecular docking of some new bis-thiadiazoles as anti-hypertensive α-blocking agents

Twelve bis-thiadiazole derivatives were synthesized in high yield via the reaction of 2,2 '-terephthaloyl bis(N-phenylhydrazine carbothioamide) with a variety of hydrazonoyl chlorides in ethanol containing catalytic amounts of TEA. All the newly synthesized compounds were characterized by physical and chemical tools (FT-IR, H-1 NMR, C-13 NMR, and Mass spectrometry). Moreover, all the novel synthesized derivatives were screened for their antihypertensive alpha-blocking efficacy against to assess their pharmaceutical significance. The encouraging promising results obtained from antihypertensive alpha-blocking activity studies on the newly synthesized derivatives make the synthesis of a new series of these compounds and studying of their pharmaceutical importance an active area for more and more investigations. The molecular docking of the most active derivative 15 b against the human dopamine D3 receptor was performed by the Molecular Operating Environment (MOE 2014. 0901) program.