Synthesis of dihydropyrimidine α,γ-diketobutanoic acid derivatives targeting HIV integrase
摘要:
The synthesis and antiviral evaluation of a series of dihydropyrimidinone and thiopyrimidine derivatives bearing aryl alpha, gamma-diketobutanoic acid moiety are described using the Biginelli multicomponent reaction as key step. The most active among 20 synthesized novel compounds were 4c, 4d and 5b, which possess nanomolar HIV-1 integrase (IN) stand transfer (ST) inhibition activities. In order to understand their mode of interactions within the IN active site, we docked all the compounds into the previously reported X-ray crystal structure of IN. We observed that compounds 4c, 4d and 5b occupied an area close to the two catalytic Mg2+ ions surrounded by their chelating triad (E221, D128 and D185), DC16, Y212 and the beta-diketo acid moiety of 4c, 4d and 5b chelating Mg2+. As those compounds lack anti-HIV activities in cell, their prodrugs were synthetized. The prodrug 4c' exhibited an anti-HIV activity of 0.19 mu M in primary human lymphocytes with some cytotoxicity. All together, these results indicate that the new analogs potentially interact within the catalytic site with highly conserved residues important for IN catalytic activity. (C) 2015 Elsevier Masson SAS. All rights reserved.
ZnO Nanoparticles as an Efficient, Heterogeneous, Reusable, and Ecofriendly Catalyst for One-Pot, Three-Component Synthesis of 3,4-Dihydropyrimidin-2(1<i>H</i>)-(thio)one Derivatives in Water
Abstract An extremely efficient heterogeneous protocol is reported for the one-pot, three-component synthesis of a series of dihydropyrimidinones (DHPMs) in the presence of ZnO nanoparticles in water as a green solvent. The ZnO nanoparticles exhibited excellent catalytic activity and the proposed methodology is capable of providing the desired products in good yields (65–94%) within short reaction
Cu-Mn Bimetallic Complex Immobilized on Magnetic NPs as an Efficient Catalyst for Domino One-Pot Preparation of Benzimidazole and Biginelli Reactions from Alcohols
作者:Mohammad Ali Nasseri、Zinat Rezazadeh、Milad Kazemnejadi、Ali Allahresani
DOI:10.1007/s10562-020-03371-0
日期:2021.4
An efficient magnetically recyclable bimetallic catalyst by anchoring copper and manganese complexes on the Fe3O4 NPs was prepared and named as Fe3O4@Cu-Mn. It was founded as a powerful catalyst for the domino one-pot oxidative benzimidazole and Biginelli reactions from benzyl alcohols as a green protocol in the presence of air, under solvent-free and mild conditions. Fe3O4@Cu-Mn NPs were well characterized
Synthesis of 3,4-Dihydropyrimidinones via Phase Transfer Catalysis
作者:Younes Moussaoui、Ridha Ben Salem
DOI:10.1002/jhet.830
日期:2013.7
4‐Dihydropyrimidinone and derivatives were synthesized by the one‐pot, three‐component Biginelli condensation of an aldehyde, β‐dicarbonyl compound and urea. Synthesis was carried out in aqueous sodium hydroxide using Aliquat‐336 as a phasetransfer agent. Compared to the classical Biginelli reaction conditions, this new method cousistently has the advantage of excellent yields and short reaction time
Indium(III) Chloride-Catalyzed One-Pot Synthesis of Dihydropyrimidinones by a Three-Component Coupling of 1,3-Dicarbonyl Compounds, Aldehydes, and Urea: An Improved Procedure for the Biginelli Reaction
作者:Brindaban C. Ranu、Alakananda Hajra、Umasish Jana
DOI:10.1021/jo000711f
日期:2000.9.1
Unprecedented Catalytic Three Component One-Pot Condensation Reaction: An Efficient Synthesis of 5-Alkoxycarbonyl- 4-aryl-3,4-dihydropyrimidin-2(1H)-ones