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Synthesis and biological evaluation of fatty acyl ester derivatives of (-)-2',3'-dideoxy-3'-thiacytidine. 2012

Hitesh K Agarwal, and Bhupender S Chhikara, and Michael J Hanley, and Guofeng Ye, and Gustavo F Doncel, and Keykavous Parang
Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island , 41 Lower College Road, Kingston, Rhode Island 02881, United States.

A number of fatty acyl derivatives of (-)-2',3'-dideoxy-3'-thiacytidine (lamivudine, 3TC, 1) were synthesized and evaluated for their anti-HIV activity. The monosubstituted 5'-O-fatty acyl derivatives of 3TC (EC(50) = 0.2-2.3 μM) were more potent than the corresponding monosubstituted N(4)-fatty acyl (EC(50) = 0.4-29.4 μM) and 5'-O-N(4)-disubstituted (EC(50) = 72.6 to >154.0 μM) derivatives of the nucleoside. 5'-O-Myristoyl (16) and 5'-O-12-azidododecanoyl derivatives (17) were found to be the most potent compounds (EC(50) = 0.2-0.9 μM) exhibiting at least 16-36-fold higher anti-HIV activity against cell-free virus than 1 (EC(50) = 11.4-32.7 μM). The EC(90) values for 16 against B-subtype and C-subtype clinical isolates were several folds lower than those of 1. The cellular uptake studies confirmed that compound 16 accumulated intracellularly after 1 h of incubation with CCRF-CEM cells and underwent intracellular hydrolysis. 5'-O-Fatty acyl derivatives of 1 showed significantly higher anti-HIV activity than the corresponding physical mixtures against the B-subtype virus.

UI MeSH Term Description Entries
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D002470 Cell Survival The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability. Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D003562 Cytidine A pyrimidine nucleoside that is composed of the base CYTOSINE linked to the five-carbon sugar D-RIBOSE. Cytosine Ribonucleoside,Cytosine Riboside,Ribonucleoside, Cytosine,Riboside, Cytosine
D004952 Esters Compounds derived from organic or inorganic acids in which at least one hydroxyl group is replaced by an –O-alkyl or another organic group. They can be represented by the structure formula RCOOR’ and are usually formed by the reaction between an acid and an alcohol with elimination of water. Ester
D005227 Fatty Acids Organic, monobasic acids derived from hydrocarbons by the equivalent of oxidation of a methyl group to an alcohol, aldehyde, and then acid. Fatty acids are saturated and unsaturated (FATTY ACIDS, UNSATURATED). (Grant & Hackh's Chemical Dictionary, 5th ed) Aliphatic Acid,Esterified Fatty Acid,Fatty Acid,Fatty Acids, Esterified,Fatty Acids, Saturated,Saturated Fatty Acid,Aliphatic Acids,Acid, Aliphatic,Acid, Esterified Fatty,Acid, Saturated Fatty,Esterified Fatty Acids,Fatty Acid, Esterified,Fatty Acid, Saturated,Saturated Fatty Acids
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006868 Hydrolysis The process of cleaving a chemical compound by the addition of a molecule of water.
D001386 Azides Organic or inorganic compounds that contain the -N3 group. Azide
D013237 Stereoisomerism The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Molecular Stereochemistry,Stereoisomers,Stereochemistry, Molecular,Stereoisomer
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

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