Borderline metal catalysts, Bi(OTf)3 and Fe(OTf)3, were proven to work as dual activators for alkynes and N,O-acetals via σ,π-chelation, which achieved a new carboarylation reaction of alkynylarenes with N,O-acetals.
modifying primary alcoholic group of kojic acid as tyrosinase inhibitors. The target compounds 6a-p were synthesized via click reaction. All compounds showed very potent anti-tyrosinase activity (IC50s = 0.06–6.80 µM), being superior to reference drug, kojic acid. In particular, the naphthyloxy analogs 6o and 6p were found to be 31–155 times more potent than kojic acid. The metal-binding study of selected
通过修饰曲酸的伯醇基作为酪氨酸酶抑制剂,设计了一系列带有芳氧基甲基-1 H -1,2,3-三唑-1-基部分的曲酸衍生的化合物6a-p。通过点击反应合成目标化合物6a-p。所有化合物均显示出非常有效的抗酪氨酸酶活性(IC 50 s = 0.06-6.80 µM),优于参考药物曲酸。特别是,萘氧基类似物6o和6p的效价比曲酸高31–155倍。所选化合物6o的金属结合研究表明,原型化合物具有金属螯合能力,尤其是对Cu 2+具有螯合能力。离子。如通过针对黑色素瘤(B16)细胞系和人包皮成纤维细胞(HFF)细胞的细胞毒性试验所证实的,有前途的化合物6o和6p具有可接受的安全性。
The present invention relates generally to compositions and methods for treating cancer and neoplastic disease. Provided herein are substituted pyrrolopyridine derivative compounds and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for inhibition of histone demethylase. Furthermore, the subject compounds and compositions are useful for the treatment of cancer, such as prostate cancer, breast cancer, bladder cancer, lung cancer and/or melanoma and the like.
Cu(I)-Catalyzed Efficient Synthesis of 2′-Triazolo-nucleoside Conjugates
作者:D. Mathur、N. Rana、C. E. Olsen、V. S. Parmar、A. K. Prasad
DOI:10.1002/jhet.2159
日期:2015.5
2′‐azido‐2′‐deoxy‐5‐methyluridine with different alkynes and aryl propargyl ethers in almost quantitative yields. Triazolo‐nucleoside conjugates, which can be evaluated for different biological activity for suitable drug development, were unambiguously identified on the basis of 1H NMR, 13C NMR, IR, and HRMS data analysis. These compounds have been synthesized for the first time and have not been reported
通过Cu(I)催化2'-叠氮基2'-脱氧尿苷和2'-叠氮基2'的缩合反应合成了一个由32个2'-三唑基尿苷和2'-三唑基-5-甲基尿苷组成的小型文库带有不同炔烃和芳基炔丙基醚的脱氧-5甲基尿苷,收率基本定量。在1 H NMR,13 C NMR,IR和HRMS数据分析的基础上,明确鉴定出三唑-核苷共轭物,可以针对不同的生物学活性进行评估,以开发合适的药物。这些化合物是首次合成,并且在早期文献中没有报道。