Zn/[bmim]PF6-mediated Markovnikov allylation of unactivated terminal alkynes
作者:J.S. Yadav、B.V.S. Reddy、P. Murali Krishna Reddy、Manoj K. Gupta
DOI:10.1016/j.tetlet.2005.09.147
日期:2005.11
A simple and highly regioselective method has been developed for the allylation of unactivated terminal alkynes with allylbromide using Zn/[bmim]PF6 as an inexpensive, readily available and recyclable reagent system. High conversions and enhanced selectivity together with the environmentally benign nature of the Zn/[bmim]PF6 reagent system makes this method an attractive alternative to established
Design and synthesis of 1,4-substituted 1H-1,2,3-triazolo-quinazolin-4(3H)-ones by Huisgen 1,3-dipolar cycloaddition with PI3Kγ isoform selective activity
作者:M. Srinivas、Anup Singh Pathania、Priya Mahajan、Praveen K. Verma、Santosh S. Chobe、Fayaz A. Malik、Amit Nargotra、Ram A. Vishwakarma、Sanghapal D. Sawant
DOI:10.1016/j.bmcl.2018.02.032
日期:2018.4
A strategy for construction of medicinally important 1,4-substituted 1H-1,2,3-triazolo-quinazolin-4(3H)-ones has been devised and presented here. The compounds have been synthesized using one-pot multicomponent strategy under microwave assisted conditions. Triazolyl-quinazolinone based D-ring modified analogs are designed based on IC87114 scaffold, which is first known isoform selective inhibitor of
已经设计并提出了构建具有医学重要性的1,4-取代的1 H -1,2,3-三唑并喹唑啉-4(3 H)-ones的策略。这些化合物是在微波辅助条件下使用一锅多组分策略合成的。基于三唑基-喹唑啉酮的D环修饰类似物是基于IC87114支架设计的,该支架是第一个已知的PI3Kδ异构体选择性抑制剂。在本文中,我们基于具有PI3Kγ特异性抑制潜能的相同支架,鉴定了两种三唑基-喹唑啉酮化合物(5a和5l),对这种同工型的选择性得到了计算机模拟的充分支持结果,其中这些化合物对PI3Kγ的活性比对PI3Kδ的相互作用,亲和力和抑制活性更好。从药物化学和药物发现的角度来看,将支架从PI3Kδ转变为PI3Kγ亚型可能非常有用,可以阐明这种新支架在不同细胞途径中的分子相互作用。
Simple, efficient one-pot method for synthesis of novel N-attached 1,2,3-triazole containing bisphosphonates
A practical and efficient one-pot method for synthesis of a novel kind of N-attached 1,2,3-triazole-containing bisphosphonates was developed. Michael addition reaction of sodium azide with ethylidene bisphosphonates and 1,3-dipolar click cycloaddition were reasonably integrated into one-pot reaction in the presence of sonication. Vinylidene bisphosphonate, NaN3, and terminal alkyne were employed as
开发了一种实用且有效的一锅法,用于合成新型的含N的1,2,3-三唑双膦酸酯。在超声处理下,叠氮化钠与亚乙基双膦酸酯的迈克尔加成反应和1,3-偶极点击环加成被合理地整合到一锅反应中。使用亚乙烯基双膦酸酯,NaN 3和末端炔烃作为反应物,使用CuSO 4 ·5H 2 O抗坏血酸钠作为催化剂体系,并使用AcOH / H 2 O(1:1 v / v)作为溶剂体系创造一个酸性环境以获得最佳效率。
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Synthesis, Molecular Properties, and Biological Evaluation of Hybrid 1,2,3‐Triazolylpolyaza Heterocyclic Compounds
this research article, a highly efficient, cost‐effective synthesis of various hybrid molecules possessing 1,2,3‐triazolyltetrazoles and evaluation of their biological activity have been addressed. The structure elucidation of these new library hybrid molecules has been carried out by IR, 1H NMR, 13C NMR, and mass spectral analysis. The compounds have been screened for their anticancer activity against
在这篇研究文章中,已经解决了具有1,2,3-三唑基四唑的各种杂合分子的高效,经济高效的合成及其生物活性的评价。这些新文库杂合分子的结构阐明已通过IR,1 H NMR,13 C NMR和质谱分析进行。筛选了这些化合物对人结肠癌细胞系Colo-205和人肺癌细胞HOP-205的抗癌活性,结果证明大多数化合物显示出非常好的治疗性质。特别是化合物3d,3j,6a和6e与阿霉素相比,它们对所有测试的人类癌细胞系的细胞毒性更高,分别增长68%,101.8%,94%和104.5%。在本研究中,对3a – j和6a – h系列进行了分子特性预测,Molinspiration进行了药物相似性评估以及Molsoft软件程序进行了毒性风险分析。所有18种类似物均基于Lipinski的“ 5条规则”进行合成,筛选其抗菌和抗癌药物为口服生物可利用药物/铅。
A Remarkably Faster Approach Towards 1,2,3-Triazolyl Quinolines Via CuAAC in Water: Their Crystal Structure Analysis and Antibacterial Activities
作者:Jyoti Mareddy、Koduru Sri Shanthi Praveena、Nallapati Suresh、Anireddy Jayashree、Soma Roy、Dandela Rambabu、Nandula Yadagiri Sreenivasa Murthy、Sarbani Pal
DOI:10.2174/1570180811310040008
日期:2013.3.1
A series of 1,2,3-triazolyl quinolines possessing substituents like –CH2OAr (Ar = aryl) moiety on the triazolyl ring were synthesized via a multi-step sequence consisting of copper-catalyzed azide-alkyne cycloaddition (CuAAC) of 3- (azidomethyl)-quinoline derivative with terminal alkynes as a key step. This step was found to be remarkably faster in pure water and completed within 10-45 min. The robustness