Chloropyrimidines as a new class of antimicrobial agents
摘要:
In the course of our investigations of pyrimidines as antimycotic agents, we have identified a sub-class, with significant in vitro activity against mycobacteria. The salient feature of these pyrimidine derivatives (3a-o and 7a,b) is their appended aryl, heteroaryl and alkylthio substituent at position 6 and also alkylthio substituent at position 2. The rational design, synthesis, and evaluation of the in vitro antibacterial activity against six pathogenic bacteria including virulent and non-virulent strains of Mycobacterium tuberculosis is described. Some of the synthesized compounds (3c, 3h, 3i, 3o) have displayed only potent in vitro antimycobacterial activity with MIC of 0.75 mug/mL except 3i which also demonstrated activity against Escherichia coli at 12.5 mug/ mL concentration. Only two compounds, 3a and 3b, demonstrated antibacterial activity against Pseudomonas aeruginosa and E. coli with MIC 12.5 mug/mL. All the synthesized compounds were also evaluated for their antimycotic activity against five pathogenic fungi but only some of them 3j-n and 7a,b were found most potent against Aspergillus fumigatus and Trichophyton mentagrophytes. (C) 2002 Elsevier Science Ltd. All rights reserved.
Chloropyrimidines as a new class of antimicrobial agents
摘要:
In the course of our investigations of pyrimidines as antimycotic agents, we have identified a sub-class, with significant in vitro activity against mycobacteria. The salient feature of these pyrimidine derivatives (3a-o and 7a,b) is their appended aryl, heteroaryl and alkylthio substituent at position 6 and also alkylthio substituent at position 2. The rational design, synthesis, and evaluation of the in vitro antibacterial activity against six pathogenic bacteria including virulent and non-virulent strains of Mycobacterium tuberculosis is described. Some of the synthesized compounds (3c, 3h, 3i, 3o) have displayed only potent in vitro antimycobacterial activity with MIC of 0.75 mug/mL except 3i which also demonstrated activity against Escherichia coli at 12.5 mug/ mL concentration. Only two compounds, 3a and 3b, demonstrated antibacterial activity against Pseudomonas aeruginosa and E. coli with MIC 12.5 mug/mL. All the synthesized compounds were also evaluated for their antimycotic activity against five pathogenic fungi but only some of them 3j-n and 7a,b were found most potent against Aspergillus fumigatus and Trichophyton mentagrophytes. (C) 2002 Elsevier Science Ltd. All rights reserved.
Suitably functionalised pyrimidines as potential antimycotic agents
作者:Nidhi Agarwal、Sandeep K. Raghuwanshi、D.N. Upadhyay、P.K. Shukla、Vishnu J. Ram
DOI:10.1016/s0960-894x(00)00091-3
日期:2000.4
Various suitably functionalised pyrimidine derivatives have been synthesized to explore their potential as antimycotic agents. Some of the synthesized compounds 4c, 4d, 8a-e have shown highly significant in vitro antifungal activity against five human pathogenic fungi. (C) 2000 Elsevier Science Ltd. All rights reserved.