Synthesis and vasodilating properties of N-alkylamide derivatives of 4-amino-3-furoxancarboxylic acid and related azo derivatives.

Abstract

A series of N-alkylamide derivatives of 4-amino-3-furoxancarboxylic acids 5a-11a and their oxidation products, the azo derivatives 5b-11b, were synthesised and studied for their vasodilating properties. All the products were able to release rat aorta strips precontracted with (-)noradrenaline. Azo derivatives proved to be 20-200 times more potent than the parent amines. The large variation of lipophilicity within the two series does not seem to influence significantly the activity. Experiments carried out in the presence of oxyhaemoglobin (HbO(2)) suggest the involvement of nitric oxide (NO*) in the vasodilation.

Cite this paper

@article{Ovchinnikov2003SynthesisAV, title={Synthesis and vasodilating properties of N-alkylamide derivatives of 4-amino-3-furoxancarboxylic acid and related azo derivatives.}, author={Igor V. Ovchinnikov and Alexander S. Kulikov and Nina N Makhova and Paolo Tosco and Antonella Di Stilo and Roberta Fruttero and Antonio M Gasc{\'o}}, journal={Farmaco}, year={2003}, volume={58 9}, pages={677-81} }