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In the present study the synthesis and antinociceptive activity of bis-vinyl selenides, prepared via FeCl3 promoted reaction addition of diorganyl dichalcogenides to alkynes, is described. The pharmacological results demonstrated that bis-vinyl selenides 3a, 3d, 3h and 3t elicited antinociceptive effect in the mouse formalin test. The antinociceptive effects of bis-vinyl selenides are not sensitive to electronic effects of the substituents on the aromatic ring directly bonded to the selenium atom. Bis-vinyl selenides 3h and 3t were the most promising molecules for pharmacological purposes since these bis-vinyl selenides were effective in both phases of the formalin test and against edema. A single dose of bis-vinyl selenides 3a, 3d, 3h and 3t did not cause acute toxicity in mice.
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Organic & Biomolecular Chemistry
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