[EN] 3,3-DIFLUOROALLYLAMINES OR SALTS THEREOF AND PHARMACEUTICAL COMPOSITIONS COMPRISING THE SAME [FR] 3,3-DIFLUOROALLYLAMINES OU LEURS SELS ET COMPOSITIONS PHARMACEUTIQUES LES COMPRENANT
Preparation of substituted semicarbazides from corresponding amines and hydrazines via phenyl carbamates
作者:Rebecca Hron、Branko S. Jursic
DOI:10.1016/j.tetlet.2014.01.052
日期:2014.2
A simple synthetic procedure for the conversion of amines and hydrazines into substituted semicarbazides was developed. The initial condensation between the desired amine and phenyl chloroformate into phenyl carbamate is followed by the addition of hydrazine under basic conditions. The reaction is tolerable to a variety of functional groups, with mild conditions and high percent yields.
mmol/L and 0.00942 mmol/L, respectively) compared with CPT (LC50 0.19719 mmol/L) against T. Cinnabarinus. Based on the observed bioactivities, preliminary structure–activityrelationship (SAR) correlations were also discussed. Furthermore, a three-dimensional quantitativestructure–activityrelationship (3D-QSAR) model using comparative molecular field analysis (CoMFA) was built. The model gave statistically
A series of novel 2,3-dihydro-4H-1-benzoselenin-4-one (thio)semicarbazone derivatives were designed and synthesized by using molecular hybridization approach. All the target compounds were characterized by HRMS and NMR and evaluated in vitro antifungal activity angainst five pathogenic strains. In comparison with precursor selenochroman-4-ones, the hybrid molecules in this study showed significant
通过分子杂交的方法,设计合成了一系列新颖的2,3-二氢-4 H -1-苯并硒啉-4-酮(硫代)半碳zone酮衍生物。所有目标化合物均通过HRMS和NMR进行了表征,并针对五种病原菌株评估了其体外抗真菌活性。与前体硒代苯并二氢吡喃-4-酮相比,本研究中的杂化分子显示出显着的抗真菌活性。值得注意的是,化合物B8对除烟曲霉以外的其他菌株均表现出显着的抗真菌活性(白色念珠菌为0.25μg/ mL,新隐球菌为2μg/ mL,玉米芽孢杆菌为8μg / mL)。氟康唑敏感菌株白色念珠菌(Candida albicans)的浓度为2μg/ mL )。此外,化合物B8,B9和C2还显示出对四种氟康唑耐药菌株的最有效活性。特别地,杂合分子B8对耐氟康唑的菌株的MIC值在0.5-2μg/ mL的范围内。因此,本研究中的分子杂交方法为抗真菌药物的开发提供了新思路。
Synthesis and Biological Evaluation of 4-Phenoxy-6,7-disubstituted Quinolines Possessing Semicarbazone Scaffolds as Selective c-Met Inhibitors
作者:Baohui Qi、Haiyan Tao、Di Wu、Jinying Bai、Yandan Shi、Ping Gong
DOI:10.1002/ardp.201300087
日期:2013.8
Novel quinoline derivatives bearing acyclic semicarbazones were prepared and their chemical structures as well as the relative stereochemistry were confirmed. All the synthesized compounds were evaluated for their c‐Met kinase inhibitory activity and their cytotoxicity against the cell lines HT‐29, MKN‐45, and MDA‐MB‐231 in vitro. Several potent compounds were further evaluated against A549 cells.
cancer cell lines, demonstrating more predominant activities against cancer cells as compared to sorafenib. Furthermore, some structure‐activity relationships have also been established. Compounds containing indole and benzene ring substituted by halogen showed better activity than sorafenib. Wound healing assay suggested that cells would be targeted on their migratory capacity by 7g , potentially affecting