Synthetic Approaches for Sulfur Derivatives Containing 1,2,4-Triazine Moiety: Their Activity for <i>in Vitro</i> Screening towards Two Human Cancer Cell Lines
some of them acting as low micromolar inhibitors. Evaluation of the cytotoxicity using a 3-(4,5-dimethylthiazol-2-yl)-3,5-diphenyltetrazolium bromide (MTT) assay, the inhibition of [(3)H]thymidine incorporation into DNA, and collagen synthesis inhibition demonstrated that these products exhibit cytotoxic effects on these breast cancer cell lines in vitro. The most effective were disulfide and sulfenamide
A Convenient Method of Preparation of 3,3’-Dichloro-5,5’-bi-1,2,4-triazine and Its Synthetic Applications
作者:Ewa Wolińska
DOI:10.3987/com-08-11535
日期:——
A convenient method for preparing of 3,3'-dichloro-5,5'-l,2,4-triazine (4) and its application to the synthesis of 3,3'-diamino-5,5'-bi-l,2,4-triazines 6a-i by the nucleophilic aromatic substitution are described. An attempt to synthesis of cyclophanes containing 5,5'-bi-l,2,4-triazine subunit by ring-closing metathesis of the alkenyl ethers 7a,b have been unsuccessful. A crossover experiment clearly
5′-bi-1,2,4-triazine with benzenethiolate or 2-pyridinethiolate anion afforded the corresponding symmetrical disulfide of 5,5′-bi-1,2,4-triazine in high yields. These products were transformed into 6,6′-bis(phenylthio)-2,2′-bipyridines and 6,6′-bis(2-pyridylthio)-2,2′-bipyridines by using Diels-Alder reactions. All compounds were fully characterized by spectroscopic methods and the X-ray diffraction
摘要 3,3'-dichloro-5,5'-bi-1,2,4-triazine 中氯化物与苯硫醇或 2-pyridinethiolate 阴离子的亲核置换得到相应的对称二硫化物 5,5'-bi-1,2 ,4-三嗪收率高。通过使用Diels-Alder反应将这些产物转化为6,6'-双(苯硫基)-2,2'-联吡啶和6,6'-双(2-吡啶硫基)-2,2'-联吡啶。所有化合物都通过光谱方法和 X 射线衍射分析进行了充分表征。