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Reaction of o-alkyl s-(β-methylmercaptoethyl)phenylthio-phosphonates and their methiodides with cholinesterases

  • Organic and Biological Chemistry
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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    A study was made of the kinetics of the inhibition of acetylcholinesterase and butyrylcholinesterase by a number of O-alkyl S-(β-methylmercaptoethyl) phenylthiophos-phonates of the sulfide and sulfonium type.

  2. 2.

    The O-alkyl S-(S-methylmercaptoethyl) phenylthiophosphonates which are irreversible chalinesterase inhibitors, acquire the properties of inhibitors with a combined type of action when the alkyl radical of the alkoxyl group is increased from pentyl to hexyl.

  3. 3.

    The sulfonium O-pentyl and O-hexyl thiophosphonates inhibit only butyrylcholinesterase by the combined mechanism, while irreversible inhibition of the enzyme occurs exclusively in the case of acetylcholinesterase.

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Literature cited

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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2573–2576, November, 1975.

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Bekanov, M.K., Brestkin, A.P., Berkhamov, M.K. et al. Reaction of o-alkyl s-(β-methylmercaptoethyl)phenylthio-phosphonates and their methiodides with cholinesterases. Russ Chem Bull 24, 2459–2461 (1975). https://doi.org/10.1007/BF00921666

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  • DOI: https://doi.org/10.1007/BF00921666

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