[Hydrolysis by plasma cholinesterase of complex adamantyl-containing esters]. 1988

N D Igumnova, and E Iu Lemina, and I I Bitiukova, and N V Klimova, and A P Skoldinov

The kinetics of cholinesterase enzymatic hydrolysis of carboxylic acid adamantyl derivatives was studied in vitro. The maximal rate of enzymatic hydrolysis in the series of bis-esters was shown to increase on elongation of the distance between ester groups. The maximal hydrolysis rate in the series of bis- and mono-esters decreases on elongation of the distance between ester group and quaternary nitrogen atom. The addition of adamantyl radical to the alcohol part of the molecule of bis- and mono-esters prevents the hydrolysis. The addition of lipophilic radicals to the cationic group of derivatives of mono- and dicarboxylic acids exerts a greater effect on the maximal hydrolysis rate in monoesters than in bis-esters.

UI MeSH Term Description Entries
D002264 Carboxylic Acids Organic compounds containing the carboxy group (-COOH). This group of compounds includes amino acids and fatty acids. Carboxylic acids can be saturated, unsaturated, or aromatic. Carboxylic Acid,Acid, Carboxylic,Acids, Carboxylic
D002802 Cholinesterases Acylcholineacylhydrolase,Cholase,Cholinesterase
D003998 Dicarboxylic Acids Acyclic acids that contain two carboxyl groups and have the formula HO2C-R-CO2H, where R may be an aromatic or aliphatic group. Acids, Dicarboxylic
D006736 Horses Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest. Equus caballus,Equus przewalskii,Horse, Domestic,Domestic Horse,Domestic Horses,Horse,Horses, Domestic
D006868 Hydrolysis The process of cleaving a chemical compound by the addition of a molecule of water.
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013329 Structure-Activity Relationship The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships
D066298 In Vitro Techniques Methods to study reactions or processes taking place in an artificial environment outside the living organism. In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In

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