Synthesis of Conformationally Constrained Analogues of Linezolid: Structure−Activity Relationship (SAR) Studies on Selected Novel Tricyclic Oxazolidinones
作者:Natesan Selvakumar、Deekonda Srinivas、Manoj Kumar Khera、Magadi Sitaram Kumar、Rao N. V. S. Mamidi、Hemanth Sarnaik、Chandrashekar Charavaryamath、Bonthu Srinivasa Rao、Mohammed A. Raheem、Jagattaran Das、Javed Iqbal、Ramanujam Rajagopalan
DOI:10.1021/jm020092y
日期:2002.8.1
synthesized a series of novel tricyclic molecules mimicking the conformationally constrained structure of the oxazolidinone antibacterial, Linezolid 1. The structure 3 obtained by this approach was synthesized and found to be moderately active against a panel of Gram-positive organisms tested. Further introduction of a fluorine atom in the aromatic ring of compound 3 as in Linezolid resulted in some excellent
为了发现基于熵有利的“生物活性构象”方法的有效抗菌剂,我们设计并合成了一系列新型三环分子,它们模仿了恶唑烷酮抗菌剂Linezolid 1的构象约束结构。通过这种方法获得的结构3为合成的,发现对测试的一组革兰氏阳性生物具有中等活性。如在利奈唑胺中进一步在化合物3的芳环中引入氟原子,导致一些具有有效抗菌活性的优异化合物。通过对酰胺官能团的结构-活性关系研究进一步微调由此获得的铅分子16,从而产生许多新颖的三环恶唑烷酮衍生物。一些特别有趣的化合物包括硫酰胺36和37,硫代氨基甲酸酯41和硫脲45。酰胺16的同系物(化合物25-30)的体外活性结果表明,酰胺氮上最多四个碳原子的化合物保留了该活性。通常,与相应的酰胺和氨基甲酸酯相比,硫代酰胺和硫代氨基甲酸酯更有效。