Pyrimidine non-nucleoside analogs: A direct synthesis of a novel class of <i>N</i>-substituted amino and <i>N</i>-sulfonamide derivatives of pyrimidines
作者:Galal H. Elgemeie、Ali M. Salah、Nermeen S. Abbas、Hoda A. Hussein、Reham A. Mohamed
DOI:10.1080/15257770.2016.1257808
日期:2017.3.4
ABSTRACT A convenient method for the regioselective synthesis of pyrimidine non-nucleoside analogs was developed. This study reports a novel and efficient method for the synthesis of a new type of N-substitutedamino methylsulfanylpyrimidines and the corresponding pyrazolo[3,4-d]pyrimidines. This series of compounds was designed through the reaction of dimethyl N-cyanodithioiminocarbonate with 2-cyano-N′-(thiophen-2-yl-
Anticancer activity of new coumarin substituted hydrazide–hydrazone derivatives
作者:Tamer Nasr、Samir Bondock、Mahmoud Youns
DOI:10.1016/j.ejmech.2014.02.026
日期:2014.4
Drug resistance is a major impediment for cancer treatment, to overcome it we designed and synthesized sixteen coumarins bearing hydrazide-hydrazone moiety and evaluated them against human drug-resistant pancreatic carcinoma (Panc-1) cells and drug-sensitive (hepatic carcinoma; Hep-G2 and leukemia; CCRF) cell lines in vitro. The 6-brominated coumarin hydrazide-hydrazone derivatives (BCHHD) 7c, 8c and 10c were more potent than doxorubicin (DOX) against resistant Panc-1 cells. BCHHD 7c showed significant cytotoxicity against all tested cells (IC50: 3.60-6.50 mu M) on comparison with all other coumarin hydrazide-hydrazone derivatives (CHHD), whereas BCHHD's 8c and 10c showed significant antiproliferative activity only against resistant Panc-1 cells with IC50 of 2.02 mu M and 2.15 mu M, respectively. All the investigated BCHHD's were able to activate caspases 3/7 and they could induce apoptosis in resistant Panc-1 cells. Microarray analysis showed that BCHHD 7c induced the expression of apoptotic- and cell cycle arrest (G2/M)- genes in resistant Panc-1 cells. Moreover, BCHHD 7c induced the up-regulation of CDKN1A, DDIT4, GDF-15 and down-regulation of CDC2, CDC20, CDK2 genes. Based on our results, we conclude that 7c could be a potent anticancer drug to overcome drug resistance in cancer and it could be highly beneficial for patients in the clinic. (C) 2014 Elsevier Masson SAS. All rights reserved.
Design, synthesis, and biological evaluation of novel amide and hydrazide based thioether analogs targeting Histone deacteylase (HDAC) enzymes
作者:Ayman B. Farag、Heba A. Ewida、Mahmoud Salama Ahmed
DOI:10.1016/j.ejmech.2018.02.011
日期:2018.3
aryl/heteroaryl hydrazide based analogs merged with thioether moiety. The acrylamide based analogs showed significant hydrophobic interaction within binding pocket in addition to co-ordination with Zn+2 via carbonyl group, however the aryl/heteroaryl hydrazide based analogs showed binding towards Zn+2 via thiol moiety. Two classes (acrylamide and aryl/heteroaryl hydrazide based analogs) were synthesized to be
HDAC抑制剂的开发已成为针对不同类型癌症的最终需求。在计算机上通过支架跳跃策略将虚拟筛选应用于筛选新型支架,以开发不同的丙烯酰胺和与硫醚部分合并的基于芳基/杂芳基酰肼的类似物。基于丙烯酰胺的类似物除通过羰基与Zn +2配位外,在结合口袋中还表现出显着的疏水相互作用,但是基于芳基/杂芳基酰肼的类似物显示与Zn +2的结合通过硫醇部分。合成了两类(基于丙烯酰胺和基于芳基/杂芳基酰肼的类似物)与60个癌细胞系一起进行筛选,以揭示AHM-4和AHM-5均在90℃时对HL-60(白血病细胞系)显示出显着的抑制性生长。 GI 50分别为GI 50的0.37μM和0.42μM的2.87μM和3.20μM的MDA-MB-435(黑素瘤细胞系)细胞系。AHM-4和AHM-5对I类HDAC酶表现出一般的抑制特性,在IC 50时对HDAC 2具有不同的抑制活性与对照相比,除了通过实时PCR抑制I类HDAC酶表
Synthesis, DFT studies, and cytotoxicity against (HepG-2) of some hetero furan-hydrazide derivatives
作者:Ghada E. Abd El Ghani、Alaa E. Hassanien、Ghada G. El-Bana
DOI:10.1016/j.molstruc.2023.135290
日期:2023.7
coupling of active methylene 3 with arylamine diazoniumsalts 10 a-h formed the corresponding 2-(2-furan-2-ylmethylene)hydrazineyl)-N-(4-substitutedphenyl)-2-oxoaceto-hydrazonoyl cyanide derivatives 11a-h in overall good yields. Furthermore, creating molecules with pyrazole rings was prepared by coupling acetohydrazide 3 with heterocyclic amine diazoniumsalts 14–16. The structural elucidation was achieved
在此,合成子合成子氰基-(呋喃-2-基亚甲基)-乙酰肼 ( 3 ) 被合成并用于构建多种含氮杂环化合物。乙酰肼3在沸腾的 EtOH 和 0.5 ml 哌啶中环化,得到 2-氰基-(呋喃-2-基亚甲基)-3-苯基丙烯酰肼 ( 5 )。此外,在 50 °C 存在下,通过搅拌起始部分3和 2-羟基-5-(苯基二氮烯基)苯甲醛衍生物6a-d,合成了一系列新的色烯-2-亚胺衍生物8a -d哌啶作催化剂。此外,活性亚甲基3与芳基胺重氮盐10 ah的偶联形成了相应的 2-(2-furan-2-ylmethylene)hydrazineyl)-N-(4-substituted phenyl)-2-oxoaceto-hydrazonoyl cyanide 衍生物11a-h,收率良好。此外,通过将乙酰肼3与杂环胺重氮盐14-16偶联来制备具有吡唑环的分子。通过 FTIR、1 H NMR 和13等不同光谱参数对