[EN] AZOLE METHYLIDENE CYANIDE DERIVATIVES AND THEIR USE AS PROTEIN KINASE MODULATORS [FR] DERIVES DE CYANURE D'AZOLE METHYLIDENE ET LEUR UTILISATION COMME MODULATEURS DE PROTEINE KINASE
Inhibitors of Bacillus subtilis DNA polymerase III. Influence of modifications in the pyrimidine ring of anilino- and (benzylamino)pyrimidines
作者:Debra J. Trantolo、George E. Wright、Neal C. Brown
DOI:10.1021/jm00155a016
日期:1986.5
examined in several series of N6-substituted 6-aminopyrimidines. The presence of alkyl groups as large as n-butyl in the 3-position of 6-(5-indanylamino)uracil had no effect on inhibitor-enzyme binding. Substituents in the 4-position of a series of 2-amino-6-(benzylamino)pyrimidines had complex effects: alkoxy and phenoxy derivatives were less active than the parent 4-oxo (isocytosine) compound, but alkylphenoxy
organic carbon (TOC) in solution, by UV absorption spectroscopy (opening of the atrazine and cyanuric acid heterorings), and by the extent of deamination (formation of NH4+) and dechlorination (release of Cl− ions) of the two compounds. Loss of atrazine was confirmed by LC-MSD techniques in the positive ion mode. Formation of various intermediates from the degradation of atrazine was substantiated
在水热和超临界水介质(HY-SC)条件下,以及在存在臭氧(HY-SC / O 3)和紫外线照明的臭氧(HY-SC / UV / O 3)的条件下,难降解的r去津和氰尿酸均被降解。)以评估在23 MPa的恒定压力下使用单程流通式处理设备是否可以提高分解过程的效率。退化的进程通过去除在溶液中总的有机碳(TOC)的程度证明,通过UV吸收光谱(开口莠去津,氰尿酸杂环中的),并且通过脱氨的程度(形成的NH 4 +)和脱氯(CL释放-离子)的两种化合物。通过正离子模式下的LC-MSD技术确认了r去津的损失。通过正负离子模式MSD分析证实了阿特拉津降解产生的各种中间体。HY-SC和HY-SC / O 3工艺在水热条件下,at去津的脱氯发生在100 °C左右,而HY-SC / UV / O 3工艺则没有。在以下三种方法中,HY-SC到HY-SC / UV / O 3的确在较高温度下(约220-230 °C
Synthesis and biological evaluation of lisofylline (LSF) analogs as a potential treatment for Type 1 diabetes
作者:Peng Cui、Timothy L. Macdonald、Meng Chen、Jerry L. Nadler
DOI:10.1016/j.bmcl.2006.04.036
日期:2006.7
Lisofylline (LSF, 1-(5-R-hydroxyhexyl)-3,7-dimethylxanthine) is an anti-inflammatory agent that protects beta-cells from Th1 cytokine-induced dysfunction and reduces the onset of Type I diabetes in non-obese diabetic (NOD) mice. Due to its low potency, poor oral bioavailability, and short half-life, the widespread clinical utility of LSF may be limited. Our goal has been to develop new agents based on the LSF structural motif that resolve the potency and pharmacokinetic liabilities of LSF. In this study, we have generated a focused library of LSF analogs that maintain the side chain (5-R-hydroxyhexyl) constant, while substituting a variety of nitrogen-containing heterocyclic substructures for the xanthine moiety of LSF. This library includes the xanthine-like (5-aza-7-deazaxanthine), as well as non-xanthine-like skeletons. The LSF analogs were evaluated in a pancreatic P-cell line for the effects on apoptosis protection and insulin release. The metabolic stability of selected compounds was also tested. (c) 2006 Elsevier Ltd. All rights reserved.