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1.
Bioorg Med Chem ; 14(24): 8186-96, 2006 Dec 15.
Article in English | MEDLINE | ID: mdl-17010617

ABSTRACT

A total of 42 benzyl- and pyridylmethyl amines were synthesized either by reductive amination of aromatic/heteroaromatic aldehydes with amines or by conjugate addition of amines to the cinnamates followed by reduction of the ester group with lithium aluminium hydride to the respective propanolamines. All the synthesized compounds were evaluated against both avirulent and virulent strains of Mycobacterium tuberculosis. Many of the compounds exhibited MIC as low as 1.56microg/mL. Few of potent compounds were also evaluated against clinical isolates of MDR TB and found to be active at one or other concentrations with MIC as low as 3.12microg/mL.


Subject(s)
Amines/chemical synthesis , Amines/pharmacology , Antitubercular Agents/chemical synthesis , Antitubercular Agents/pharmacology , Drug Resistance, Multiple, Bacterial , Mycobacterium tuberculosis/drug effects , Amines/chemistry , Microbial Sensitivity Tests , Mycobacterium tuberculosis/classification
2.
Bioorg Med Chem Lett ; 16(19): 5144-7, 2006 Oct 01.
Article in English | MEDLINE | ID: mdl-16870429

ABSTRACT

A series of 9-substituted tetrahydroacridines were synthesized by nucleophilic substitution of chloro group with different nucleophiles in 9-chlorotetrahydroacridine (2). The latter could be obtained by POCl(3) mediated cyclization of the intermediate enamine, which in turn, was prepared by acid catalyzed condensation of anthranilic acid and cyclohexanone. Most of the compounds on antitubercular evaluation against M. tuberculosis H37 Rv and H37 Ra strains exhibited potent activities with MIC 6.125-0.78 microg/mL comparable to the standard drugs.


Subject(s)
Acridines/chemical synthesis , Acridines/pharmacology , Antitubercular Agents/chemical synthesis , Mycobacterium tuberculosis/drug effects , Antitubercular Agents/pharmacology , Microbial Sensitivity Tests , Structure-Activity Relationship
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