Synthesis and Biological Evaluation of 2,4-Diaminopyrimidine-Based Antifolate Drugs against Bacillus anthracis
作者:Baskar Nammalwar、N. Muddala、Christina Bourne、Mary Henry、Philip Bourne、Richard Bunce、Esther Barrow、K. Berlin、William Barrow
DOI:10.3390/molecules19033231
日期:——
Due to the innate ability of bacteria to develop resistance to available antibiotics, there is a critical need to develop new agents to treat more resilient strains. As a continuation of our research in this area, we have synthesized a series of racemic 2,4-diaminopyrimidine-based drug candidates, and evaluated them against Bacillus anthracis. The structures are comprised of a 2,4-diaminopyrimidine ring, a 3,4-dimethoxybenzyl ring, and an N-acryloyl-substituted 1,2-dihydrophthalazine ring. Various changes were made at the C1 stereocenter of the dihydrophthalazine moiety in the structure, and the biological activity was assessed by measurement of the MIC and Ki values to identify the most potent drug candidate.
由于细菌天生具有对现有抗生素产生抗药性的能力,因此亟需开发新的药物来治疗抗药性更强的菌株。作为这一领域研究的延续,我们合成了一系列外消旋 2,4-二氨基嘧啶类候选药物,并对它们进行了抗炭疽杆菌的评估。这些药物的结构由一个 2,4-二氨基嘧啶环、一个 3,4-二甲氧基苄基环和一个 N-丙烯酰基取代的 1,2-二氢酞嗪环组成。对结构中二氢酞嗪分子的 C1 立体中心进行了各种改变,并通过测量 MIC 和 Ki 值来评估生物活性,以确定最有效的候选药物。