1
|
Hetemi D, Médard J, Kanoufi F, Combellas C, Pinson J, Podvorica FI. Surface Modification of Polymers by Reaction of Alkyl Radicals. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:512-518. [PMID: 26653398 DOI: 10.1021/acs.langmuir.5b03669] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The surfaces of poly(methyl methacrylate) and polyethylene are modified either (i) by a two-step process including the thermal reaction of alkyl radicals derived from bromohexanoic acid in a mixture of 2,6-dimethylbenzene diazonium salt and neat isopentyl nitrite at 60 °C, followed by reaction with p-nitroaniline, anthraquinone, neutral red, and polyethylene glycol moieties, or (ii) by reaction of a previously anthraquinone-modified bromohexanoic acid. The modified surfaces are characterized by IR, XPS, UV, and water contact angles. A mechanism is proposed to rationalize the results. This approach is an efficient way to modify and pattern polymer surfaces with different organic groups and chemical functionalities under mild conditions.
Collapse
Affiliation(s)
- Dardan Hetemi
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
- Chemistry Department of Natural Sciences Faculty, University of Prishtina , rr. "NënaTereze" nr.5, 10000 Prishtina, Kosovo
| | - Jérôme Médard
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - Frédéric Kanoufi
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - Catherine Combellas
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - Jean Pinson
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - Fetah I Podvorica
- Univ Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS , 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
- Chemistry Department of Natural Sciences Faculty, University of Prishtina , rr. "NënaTereze" nr.5, 10000 Prishtina, Kosovo
| |
Collapse
|
2
|
Gupta M, Madan AK. Diverse Models for the Prediction of HIV Integrase Inhibitory Activity of Substituted Quinolone Carboxylic Acids. Arch Pharm (Weinheim) 2012; 345:989-1000. [DOI: 10.1002/ardp.201100316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 07/04/2012] [Accepted: 07/11/2012] [Indexed: 11/07/2022]
|
3
|
Agapkina J, Zatsepin T, Knyazhanskaya E, Mouscadet JF, Gottikh M. Structure-Activity Relationship Studies of HIV-1 Integrase Oligonucleotide Inhibitors. ACS Med Chem Lett 2011; 2:532-7. [PMID: 24900345 DOI: 10.1021/ml200066k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Accepted: 04/19/2011] [Indexed: 11/29/2022] Open
Abstract
Integration of human immunodeficiency virus type 1 DNA into an infected cell genome is one of the key steps of the viral replication cycle. Therefore, viral enzyme integrase, which realizes the integration, represents an attractive and validated target for the development of new antiviral drugs. In this paper, the anti-integrase activity of a series of conjugates of single-stranded oligonucleotides with hydrophobic molecules was tested, and the structure-activity relationships were also analyzed. Both oligonucleotide and hydrophobic parts of the conjugates influenced the inhibitory potency. Conjugates of 11-mer phosphorothioate oligonucleotides with 6-carboxy-4,7,2',4',5',7'-hexachlorofluorescein (HEX) were found to be the most efficient inhibitors (IC50 = 20 nM) and might be considered as lead compounds for further development of integrase inhibitors.
Collapse
Affiliation(s)
- Julia Agapkina
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, 119991 Moscow, Russia
| | - Timofei Zatsepin
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, 119991 Moscow, Russia
- Central Research Institute of Epidemiology, Novogireevskaya street 3a, Moscow 111123, Russia
| | - Ekaterina Knyazhanskaya
- Belozersky Institute of Physical and Chemical Biology, Lomonosov Moscow State University, Leninskie gory 1, Moscow 119991, Russia
| | | | - Marina Gottikh
- Belozersky Institute of Physical and Chemical Biology, Lomonosov Moscow State University, Leninskie gory 1, Moscow 119991, Russia
| |
Collapse
|
4
|
Castagnolo D, Schenone S, Botta M. Guanylated Diamines, Triamines, and Polyamines: Chemistry and Biological Properties. Chem Rev 2011; 111:5247-300. [PMID: 21657224 DOI: 10.1021/cr100423x] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Daniele Castagnolo
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, via Alcide de Gasperi 2, 53100 Siena, Italy
| | - Silvia Schenone
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Genova, Viale Benedetto XV 3, I-16132 Genova, Italy
| | - Maurizio Botta
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, via Alcide de Gasperi 2, 53100 Siena, Italy
| |
Collapse
|
5
|
Abstract
The 3'-S-phosphorothiolate (3'-SP) linkage has proven to be a very useful analogue of the phosphodiester group in nucleic acid derivatives; it is achiral and also shows good resistance to nucleases. Whilst oligonucleotides containing a 3'-SP linkage are best prepared using phosphoramidite chemistry, the corresponding dinucleotides are most efficiently synthesised using a Michaelis-Arbuzov reaction between a nucleoside 5'-phosphite and a nucleoside 3'-S-disulphide. The method described here is for a thymidine dinucleotide and is based on the use of a silyl phosphite, which is more reactive than simple alkyl phosphites and also simplifies the deprotection strategy. Full experimental details and spectroscopic data for the synthetic intermediates and the target dinucleotide are provided.
Collapse
Affiliation(s)
- James W Gaynor
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK.
| | | |
Collapse
|