Synthesis and antimicrobial activity of some new thienopyrimidine derivatives
作者:Mahmoud S. Tolba、Adel M. Kamal El-Dean、Mostafa Ahmed、Reda Hassanien、Mahmoud Farouk
DOI:10.24820/ark.5550190.p010.226
日期:——
biological activities of pyrimidine and thienopyrimidine as antimicrobial agents, so in the present work, a series of new heterocyclic compounds containing thienopyrimidine moiety were synthesized such as, tetrazolo[1",5":1',6']pyrimido[4',5':4,5]thieno[2,3-d]pyrimidine derivatives (8-12b), pyrimido[3",2":1',6']pyrimido[4',5':4,5]thieno[2,3-d]pyrimidine derivatives (14,16) and pyrimido[5',4':4,5]thieno[2
Quantitative analysis of hydrogen and chalcogen bonds in two pyrimidine-5-carbonitrile derivatives, potential DHFR inhibitors: an integrated crystallographic and theoretical study
作者:Lamya H. Al-Wahaibi、Kushumita Chakraborty、Nora H. Al-Shaalan、Mohamed Yehya Annavi Syed Majeed、Olivier Blacque、Aamal A. Al-Mutairi、Ali A. El-Emam、M. Judith Percino、Subbiah Thamotharan
DOI:10.1039/d0ra07215j
日期:——
Two potential bioactive pyrimidine-5-carbonitrile derivatives have been synthesized and characterized by spectroscopic techniques (1H and 13C-NMR) and the three dimensional structures were elucidated by single crystal X-ray diffraction at low temperature (160 K). In both structures, the molecular conformation is locked by an intramolecular C–H⋯C interaction involving the cyano and CH of the thiophene
Synthesis of New Fused Thienopyrimidines Derivatives as Anti-inflammatory Agents
作者:Mahmoud S. Tolba、Mostafa Ahmed、Adel M. Kamal El-Dean、Reda Hassanien、Mahmoud Farouk
DOI:10.1002/jhet.3056
日期:2018.2
5‐Amino‐2‐(p‐tolylamino)‐4‐phenylthieno[2,3‐d]pyrimidine‐6‐carbonitrile 9, which was synthesized by an innovative method, was used as a versatile precursor for synthesizing pyrimido‐thienopyrimidine, triazolopyrimidothienopyrimidine, and pyrimidothienotriazine compounds. Thus, reaction of aminothienopyrimidinecarbonitrile 9 with chloroacetylchloride in dioxane afforded the chloroacetylaminocarbonitrile
通过创新方法合成的5-氨基-2-(对甲苯胺)-4-苯基噻吩并[2,3- d ]嘧啶-6-腈9被用作合成嘧啶-噻吩并嘧啶,三唑并嘧啶并噻吩并嘧啶的通用前体,和嘧啶并三嗪化合物。因此,氨基噻吩并嘧啶甲腈9与氯乙酰氯在二恶烷中的反应提供了氯乙酰氨基甲腈衍生物10,该衍生物与各种伯胺和仲胺进行了亲核取代反应,得到了相应的N-烷基-(芳基)氨基乙酰胺11a,b。另一方面,氨基腈9的反应用原甲酸三乙酯与肼环合,得到氨基亚氨基嘧啶衍生物13。后者用作合成新杂环化合物的通用前体。所有新化合物的结构都是根据其分析和光谱数据(IR,1 H NMR,13 C NMR和MS)确定的。在体外评估了一些合成的化合物的抗炎活性。所有测试的化合物均显示出显着的抗炎活性。
Synthesis, Antimicrobial, and Anticancer Activities of a New Series of Thieno[2,3-<i>d</i>] Pyrimidine Derivatives
作者:Abdelreheem Abdelfatah Saddik、Adel Mohamed Kamal El-Dean、Waleed Ahmed El-Said、Khairy Mohamed Hassan、Mohamed Saad Abbady
DOI:10.1002/jhet.3256
日期:2018.9
A new series from thieno[2,3‐d] pyrimidinederivatives have been synthesized based on 2‐(ethylmercapto)‐4‐mercapto‐6‐phenyl‐5‐pyrimidinecarbonitrile, these compounds used in the synthesis of many pyrimidothienopyrimidine derivatives and triazolo[1″,5″:1″,6″]pyrimido[4′,5′:4,5]thieno[2,3‐d] pyrimidinederivatives. The chemical composition of these compounds was confirmed by 1H NMR, 13C NMR, and MS
噻吩并[2,3- d ]嘧啶衍生物的新系列是基于2-(乙基巯基)-4-巯基-6-苯基-5-嘧啶腈的合成的,这些化合物用于合成许多嘧啶并吡啶并嘧啶衍生物和三唑[1“,5”:1“,6”] pyrimido [4',5':4,5] thieno [2,3- d ]嘧啶衍生物。这些化合物的化学组成通过1 H NMR,13 C NMR和MS技术确认。筛选了一些合成的化合物的抗微生物剂和抗癌剂。化合物(9b)对烟曲霉(RCMB 2568),白色念珠菌(RCMB 05036),Saphylococcus黄色葡萄球菌(RCMB 010010),Bacillis 枯草芽孢杆菌(RCMB 010067),沙门菌。(RCMB 010043)和大肠杆菌(RCMB 010052)。在紫杉醇作为参考物质的情况下,针对两种癌细胞系(MCF-7和HeLa细胞)评估了化合物(2)和(5a - k)的IC 50值。化合物(5g)对MCF-7的细胞毒性最高(IC
Jarque; Sala, Anales de la Real Sociedad Espanola de Fisica y Quimica, 1946, vol. 42, p. 349