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The influence of three polyacetylenic analogs of natural polyenoic acids which are inhibitors of their lipoxygenase oxidation on the dynamics of the extinction of the inward current induced by repeated iontophoretic applications of acetylcholine to the soma was investigated in identified RPa3 and LPa3 of the edible snail using the method of bielectrode… (More)
The review covers the aspects of classification, specificity and structure--biological activity relations in leukotriene receptor antagonists which blockade the action of the acyclic arachidonate metabolites. Prospects of designing new medicines based on these compounds are also discussed.
8Z,11Z,14Z-Eicosatriene-5-ynoic acid and its tritium-labelled analogue, [5,6-3H]arachidonic acid, have been synthesized on the basis of acetylenic compounds. [5,6-3H]Arachidonic acid has been used as substrate for the enzymatic synthesis of [5,6-3H]PGE2 and [5,6-3H]PGF2 alpha.
A synthetic route to 5,8,11,14,17-eicosapentaynoic acid, an acetylenic precursor of 5Z,8Z,11Z,14Z,17Z-eicosapentaenoic acid, has been developed based on condensation of a propargyl synthon with omega-acetylenic fragments. Physico-chemical constants and spectral characteristics (IR, 1H-NMR, and mass-spectrometry) of the target and intermediate compounds are… (More)
On identified Helix neurones RPa3 and LPa3 with the use of the double-electrode voltage clamp technique on the membrane the influence was studied of three polyacetilenic analogues of natural polyenoic acids which were the inhibitors of their lipoxygenase oxidation on the dynamics of inward current extinction, caused by the repeated iontophoretic… (More)