吡唑部分是药物和药物化学中杂环化合物的重要类别。以互补的区域选择性合成了新颖的1-芳基-3、5-双(杂)芳基吡唑衍生物。化学结构通过IR,1 H NMR,13 C NMR和质谱分析确认。在各种癌细胞系中筛选了化学实体,以评估其细胞活力。结果表明,化合物3-(1-(4-溴苯基)-5-苯基-1H-吡唑-3-基)吡啶(5d)对乳腺癌和白血病细胞具有最大的细胞毒性作用。通过活死细胞测定法和细胞周期分析证实了细胞毒性。线粒体膜电位,膜联蛋白V-FITC染色,DNA片段化,Hoechst染色,蛋白质印迹法和Western印迹分析揭示了化合物5d通过激活癌细胞凋亡来诱导细胞死亡的能力。因此,本研究证明化合物5d可能是开发用于治疗白血病和乳腺癌的小分子抑制剂的有吸引力的化学实体。
The palladium-catalysed four-component coupling of a halide, terminal alkyne, molybdenum hexacarbonyl and either a hydrazine or amidine has been shown to be an efficient method for the construction of highly substituted pyrazoles and pyrimidines, respectively, in a one-pot process.
Regioselective Synthesis of Polysubstituted Pyrazoles and Isoxazoles
作者:Alan R. Katritzky、Mingyi Wang、Suoming Zhang、Michael V. Voronkov、Peter J. Steel
DOI:10.1021/jo0101407
日期:2001.10.1
A regioselectivesynthesis has been developed for the preparation of unsymmetrical 1,3,5-triaryl-4-alkylpyrazolines and -pyrazoles by treatment of alpha-benzotriazolyl-alpha,beta-unsaturated ketones with monosubstituted hydrazines followed by alkylation at the 4-position of the pyrazoline ring. Reaction of alpha-benzotriazolyl-alpha,beta-unsaturated ketones with hydroxylamine gives 3,5-disubstituted
Methods and Compositions for the Treatment of RAS Associated Disorders
申请人:Ratner Nancy
公开号:US20120302581A1
公开(公告)日:2012-11-29
The instant disclosure relates to compositions that may be useful as therapeutic agents for the treatment of disorders associated or caused by Ras deregulation or dysregulation, for example, disorders associated with alterations in the NF1 gene such as neurofibromatosis type I, fungal infections such as those caused by
Candida albicans
, and proliferative disorders such as glioblastoma.