本文报道了一系列6-芳基甲基-1-(烯丙氧基甲基)-5-烷基尿嘧啶衍生物的合成和抗病毒活性,这些衍生物可被视为抗HIV-1药物emivirine(以前为MKC-442)的类似物。它们在用各种烯丙氧基甲基部分取代乙氧基甲基上有所不同。活性最高的化合物N-1烯丙氧基甲基和N-1 3-甲基丁-2-烯基取代的5-乙基-6-(3,5-二甲基苄基)尿嘧啶(12和13)在HIV-1野生型中表现出活性。皮摩尔范围的选择性指数大于5 x 10(6),并且在亚微摩尔范围内具有对临床上重要的已知对埃米韦林具有抗性的Y181C和K103N突变株的活性。
Synthesis and evaluation of new potential HIV-1 non-nucleoside reverse transcriptase inhibitors. New analogues of MKC-442 containing Michael acceptors in the C-6 position
作者:Lene Petersen、Carsten H. Jessen、Erik B. Pedersen、Claus Nielsen
DOI:10.1039/b307800k
日期:——
beta-unsaturated aldehydes and oxidation of the alcohols formed to give the alkenoyl analogues 1a-3a. Analogues 1b-3b containing an allyloxymethyl group in the N-1 position instead of the ethoxymethyl group could not be synthesised due to isomerisation of the allylic group during the metallation reaction. The NMR data for compounds 1a-3a showed a hindered rotation, which was more pronounced for the 6-cyclohexenylcarbonyl
NHC-CDI Betaine Adducts and Their Cationic Derivatives as Catalyst Precursors for Dichloromethane Valorization
作者:David Sánchez-Roa、Marta E. G. Mosquera、Juan Cámpora
DOI:10.1021/acs.joc.1c01971
日期:2021.12.3
conditions, using dichloromethane both as a reagent and solvent, and very low catalyst loading (0.01 mol %). The CH2Z2 derivatives were isolated in quantitative yields after filtration and evaporation, which facilitates recycling the dichloromethane excess. Mechanistic studies for the synthesis of methylal CH2(OMe)2 rule out organocatalysis as being responsible for the CH2 transfer, and a phase-transfer
N-杂环卡宾和碳二亚胺的两性离子加合物 (NHC-CDI) 是一类新兴的有机化合物,具有在各个领域的应用前景。在此,我们报告了 ICyCDI( p- Tol ) 甜菜碱加合物 ( 1a ) 及其阳离子衍生物2a和3a作为催化剂前体的用途,通过转化为高附加值产品 CH 2 Z 2 (Z = OR, SR或NR 2)。该过程意味着二氯甲烷被一系列亲核试剂 Na + Z –(预先形成或原位生成)的选择性氯化物取代从 HZ 和无机碱)以完全选择性地产生甲醛衍生的缩醛、二硫缩醛或缩醛胺。该反应在非常温和的条件下以多克规模进行,使用二氯甲烷作为试剂和溶剂,以及非常低的催化剂负载量 (0.01 mol%)。CH 2 Z 2衍生物在过滤和蒸发后以定量产率分离,这有利于回收过量的二氯甲烷。合成甲缩醛 CH 2 (OMe) 2 的机理研究排除了有机催化是 CH 2转移的原因,并提出了相转移催化机制。此外,我们观察到1a和2a
New Emivirine (MKC-442) Analogues Containing a Tetrahydronaphthalene at C-6 and their Anti-HIV Activity
作者:Frans Therkelsen、Per T. Jørgensen、Claus Nielsen、Erik B. Pedersen
DOI:10.1007/s00706-007-0598-1
日期:2007.5
An 5-ethyl-2-thiouracil derivative with a 6-(tetrahydronaphthalen-1-yl)methyl substituent was synthesized by condensation of thiourea with an adequate β-ketoester which in turn was synthesized in a single step from (tetrahydronaphthalen-1-yl)acetonitrile. The latter starting material was also used to synthesize an analogously substituted tetrahydronaphthalen-1-yl substituted uracil with a locked conformation
Synthesis and Anti-HIV-1 Activity of 1-Substiuted 6-(3-Cyanobenzoyl) and [(3-Cyanophenyl)fluoromethyl]-5-ethyl-uracils
作者:Yasser M. Loksha、Erik B. Pedersen、Roberta Loddo、Paolo La Colla
DOI:10.1002/ardp.200900058
日期:2009.9
1‐Substiuted 6‐(3‐cyanobenzoyl) and [(3‐cyanophenyl)fluoromethyl]‐5‐ethyl‐uracils were synthesized and evaluated in cell‐based assays against HIV‐1 wild‐type and its clinically relevant non‐nucleoside reverse transcriptase inhibitor (NNRTI)‐resistant mutants. Some of the synthesized compounds showed activity against HIV‐1 wild‐type in the same range as Emivirine (MKC‐442). 3‐[3‐(Allyloxymethyl)‐5‐ethyl‐2
Synthesis and Anti-HIV-1 Activity of New Fluoro-HEPT Analogues: An Investigation on Fluoro versus Hydroxy Substituents
作者:Yasser M. Loksha、Erik B. Pedersen、Roberta Loddo、Paolo La Colla
DOI:10.1002/ardp.201000187
日期:2011.6
uracil (7) with propargyl alcohol to afford 8 which was fluorinated to give the fluoro propargyl derivative 9. Compound 7 was synthesized by N1‐alkylation of the corresponding uracil. Significant activity was found against HIV‐1 except for compounds with 5‐hydroxymethyl and 5‐fluoromethyl substituents.