Q95172973
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Four novel bisquaternary aldoxime cholinesterase reactivators differing in their chemical structure were prepared. Afterwards, their biological activity was evaluated for their ability to reactivate acetylcholinesterase (AChE; EC 3.1.1.7) and butyrylcholinesterase (BuChE; EC 3.1.1.8) inhibited by paraoxon. Their reactivation activity was compared with standard reactivators--pralidoxime, obidoxime and HI-6--which are clinically used at present. As it resulted, none of the prepared compounds surpassed obidoxime, which is considered to be the most potent compound if used for reactivation of AChE inhibited by paraoxon. In case of BuChE reactivation, two compounds (K053 and K068) achieved similar results as obidoxime.
- MeSH
- acetylcholinesterasa účinky léků metabolismus MeSH
- butyrylcholinesterasa účinky léků metabolismus MeSH
- enzymové reaktivátory farmakologie MeSH
- magnetická rezonanční spektroskopie MeSH
- oximy chemie MeSH
- paraoxon farmakologie MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Klíčová slova
- vasicin, vasicinon,
- MeSH
- alkaloidy farmakologie chemická syntéza MeSH
- organická chemie metody MeSH
- Peganum enzymologie MeSH
Byla optimalizována cyklizační reakce skořicové kyseliny (Ia) chloridem thionylu a připravena série3-chlor-6-subst. benzo[b]thiofen-2-karbonylchloridů Va-Vn. Chlorid Va byl transformován na sériiN-aryl-3-subst. (Cl, OCH3, OH) benzo[b]thiofen-2-karboxamidů VII, IX, X. Látky byly podrobenyhodnocení vybraných antileukotrienových aktivit in vitro a protizánětlivého účinku in vivo. V sou-ladu s předpokládaným mechanizmem je inhibice ušního zánětu podmíněna antileukotrienovouaktivitou, zatímco inhibice carrageeninového edému není vyvolána pouze tímto mechanizmem.
The cyclizing reaction of cinnamic acid (Ia) with thionyl chloride was optimized and a series of3-chloro-6-subst.benzo[b]thiophene-2-carbonyl chlorides Va-Vn was prepared. Chloride Va wastransformed into a series of N-aryl-3-subst. (Cl, OCH3, OH) benzo[b]thiophene-2-carboxamides VII,IX, X. The drugs were subjected to an evaluation of selected antileucotriene activites in vitro and ofthe anti-inflammatory effect in vivo. In agreement with the assumed mechanism, inhibition of theear inflammation is conditioned by the antileucotriene activity, whereas inhibition of the carrageenoedema is not due to this mechanism alone.