1
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Ruiz Puentes P, Rueda-Gensini L, Valderrama N, Hernández I, González C, Daza L, Muñoz-Camargo C, Cruz JC, Arbeláez P. Predicting target-ligand interactions with graph convolutional networks for interpretable pharmaceutical discovery. Sci Rep 2022; 12:8434. [PMID: 35589824 PMCID: PMC9119967 DOI: 10.1038/s41598-022-12180-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 05/05/2022] [Indexed: 02/08/2023] Open
Abstract
Drug Discovery is an active research area that demands great investments and generates low returns due to its inherent complexity and great costs. To identify potential therapeutic candidates more effectively, we propose protein–ligand with adversarial augmentations network (PLA-Net), a deep learning-based approach to predict target–ligand interactions. PLA-Net consists of a two-module deep graph convolutional network that considers ligands’ and targets’ most relevant chemical information, successfully combining them to find their binding capability. Moreover, we generate adversarial data augmentations that preserve relevant biological backgrounds and improve the interpretability of our model, highlighting the relevant substructures of the ligands reported to interact with the protein targets. Our experiments demonstrate that the joint ligand–target information and the adversarial augmentations significantly increase the interaction prediction performance. PLA-Net achieves 86.52% in mean average precision for 102 target proteins with perfect performance for 30 of them, in a curated version of actives as decoys dataset. Lastly, we accurately predict pharmacologically-relevant molecules when screening the ligands of ChEMBL and drug repurposing Hub datasets with the perfect-scoring targets.
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Affiliation(s)
- Paola Ruiz Puentes
- Center for Research and Formation in Artificial Intelligence, Universidad de los Andes, Bogotá, 111711, Colombia.,Department of Biomedical Engineering, Universidad de los Andes, Bogotá, 111711, Colombia
| | - Laura Rueda-Gensini
- Center for Research and Formation in Artificial Intelligence, Universidad de los Andes, Bogotá, 111711, Colombia.,Department of Biomedical Engineering, Universidad de los Andes, Bogotá, 111711, Colombia
| | - Natalia Valderrama
- Center for Research and Formation in Artificial Intelligence, Universidad de los Andes, Bogotá, 111711, Colombia.,Department of Biomedical Engineering, Universidad de los Andes, Bogotá, 111711, Colombia
| | - Isabela Hernández
- Center for Research and Formation in Artificial Intelligence, Universidad de los Andes, Bogotá, 111711, Colombia.,Department of Biomedical Engineering, Universidad de los Andes, Bogotá, 111711, Colombia
| | - Cristina González
- Center for Research and Formation in Artificial Intelligence, Universidad de los Andes, Bogotá, 111711, Colombia.,Department of Biomedical Engineering, Universidad de los Andes, Bogotá, 111711, Colombia
| | - Laura Daza
- Center for Research and Formation in Artificial Intelligence, Universidad de los Andes, Bogotá, 111711, Colombia.,Department of Biomedical Engineering, Universidad de los Andes, Bogotá, 111711, Colombia
| | - Carolina Muñoz-Camargo
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá, 111711, Colombia
| | - Juan C Cruz
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá, 111711, Colombia
| | - Pablo Arbeláez
- Center for Research and Formation in Artificial Intelligence, Universidad de los Andes, Bogotá, 111711, Colombia. .,Department of Biomedical Engineering, Universidad de los Andes, Bogotá, 111711, Colombia.
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2
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Bose A, Pathak T. Vinyl sulfone-modified carbohydrates: Michael acceptors and 2π partners for the synthesis of functionalized sugars and enantiomerically pure carbocycles and heterocycles. Adv Carbohydr Chem Biochem 2021; 78:1-134. [PMID: 33276909 DOI: 10.1016/bs.accb.2020.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Increasing demands for molecules with skeletal complexity, including those of stereochemical diversity, require new synthetic strategies. Carbohydrates have been used extensively as chiral building blocks for the synthesis of various complex molecules. On the other hand, the vinyl sulfone group has been identified as a unique functional group, which acts either as a Michael acceptor or a 2π partner in cycloaddition reactions. A combination of the high reactivity of the vinyl sulfone group and the in-built chiralities of carbohydrates has the potential to function as a powerful tool to generate a wide variety of enantiomerically pure reactive intermediates. Since CS bond formation in carbohydrates is easily achieved with regioselectivity, further synthetic manipulations of these thiosugars has led to the generation of a wide range of vinyl sulfone-modified furanosyl, pyranosyl, acyclic, and bicyclic carbohydrates. Several approaches have been studied to standardize the preparative methods for accessing vinyl sulfone-modified carbohydrates at least on a gram scale. Reactions of these modified carbohydrates with appropriate reagents afford a large number of new chemical entities primarily via (i) Michael addition reactions, (ii) desulfostannylation, (iii) Michael-initiated ring-closure reactions, and (iv) cycloaddition reactions. A wide range of desulfonylating reagents in the context of sensitive molecules such as carbohydrates have also been extensively studied. Applications of these strategies have led to the synthesis of (a) amino sugars and branched-chain sugars, (b) C-glycosides, (c) enantiomerically pure cyclopropanes, five- and six-membered carbocycles, (d) saturated oxa-, aza-, and thio-monocyclic heterocycles, (e) bi-and tricyclic saturated oxa and aza heterocycles, (f) enantiomerically pure and trisubstituted pyrroles, (g) 1,5-disubstituted 1,2,3-triazolylated carbohydrates and the corresponding triazole-linked di- and trisaccharides, (h) divinyl sulfone-modified carbohydrates and densely functionalized S,S-dioxothiomorpholines, and (i) modified nucleosides. Details of reaction conditions were incorporated as much as possible and mechanistic discussions were included wherever necessary.
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Affiliation(s)
- Amitabha Bose
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Tanmaya Pathak
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India.
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3
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Soto M, Soengas RG, Silva AM, Gotor-Fernández V, Rodríguez-Solla H. Synthesis of carbohydrate-derived (Z)-vinyl halides and silanes: Samarium-promoted stereoselective 1,2-elimination on sugar-derived α-halomethylcarbinol acetates. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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4
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Wang L, Yue H, Yang D, Cui H, Zhu M, Wang J, Wei W, Wang H. Metal-free Oxidative Coupling of Aromatic Alkenes with Thiols Leading to (E)-Vinyl Sulfones. J Org Chem 2017; 82:6857-6864. [DOI: 10.1021/acs.joc.7b00994] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Leilei Wang
- Institute
of Medicine and Material Applied Technologies, Key Laboratory of Pharmaceutical
Intermediates and Analysis of Natural Medicine, School of Chemistry
and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, China
| | - Huilan Yue
- Key
Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau
Biology, Chinese Academy of Sciences, Qinghai 810008, China
| | - Daoshan Yang
- Institute
of Medicine and Material Applied Technologies, Key Laboratory of Pharmaceutical
Intermediates and Analysis of Natural Medicine, School of Chemistry
and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, China
| | - Huanhuan Cui
- Institute
of Medicine and Material Applied Technologies, Key Laboratory of Pharmaceutical
Intermediates and Analysis of Natural Medicine, School of Chemistry
and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, China
| | - Minghui Zhu
- Institute
of Medicine and Material Applied Technologies, Key Laboratory of Pharmaceutical
Intermediates and Analysis of Natural Medicine, School of Chemistry
and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, China
| | - Jinming Wang
- Institute
of Medicine and Material Applied Technologies, Key Laboratory of Pharmaceutical
Intermediates and Analysis of Natural Medicine, School of Chemistry
and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, China
| | - Wei Wei
- Institute
of Medicine and Material Applied Technologies, Key Laboratory of Pharmaceutical
Intermediates and Analysis of Natural Medicine, School of Chemistry
and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, China
| | - Hua Wang
- Institute
of Medicine and Material Applied Technologies, Key Laboratory of Pharmaceutical
Intermediates and Analysis of Natural Medicine, School of Chemistry
and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, China
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5
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Liang Y, Suzol SH, Wen Z, Artiles AG, Mathivathanan L, Raptis RG, Wnuk SF. Uracil Nucleosides with Reactive Group at C5 Position: 5-(1-Halo-2-sulfonylvinyl)uridine Analogues. Org Lett 2016; 18:1418-21. [PMID: 26933954 DOI: 10.1021/acs.orglett.6b00346] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The transition-metal-catalyzed or radical-mediated halosulfonylation of 5-ethynyluridine provided (E)-(1-halo-2-tosylvinyl)uridines. These (β-halo)vinyl sulfones undergo efficient stereoselective addition-elimination with amines or thiols to provide Z-β-aminovinyl or E-β-thiovinyl sulfones tethered to the C5 position of the uracil ring.
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Affiliation(s)
- Yong Liang
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Sazzad H Suzol
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Zhiwei Wen
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Alain G Artiles
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Logesh Mathivathanan
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Raphael G Raptis
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Stanislaw F Wnuk
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
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6
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Schowen KB, Schowen RL, Borchardt SE, Borchardt PM, Artursson P, Audus KL, Augustijns P, Nicolazzo JA, Raub TJ, Schöneich C, Siahaan TJ, Takakura Y, Thakker DR, Wolfe MS. A Tribute to Ronald T. Borchardt—Teacher, Mentor, Scientist, Colleague, Leader, Friend, and Family Man. J Pharm Sci 2016; 105:370-385. [DOI: 10.1002/jps.24687] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 09/24/2015] [Indexed: 11/08/2022]
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7
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Soengas RG, Silva VLM, Pinto J, Rodríguez-Solla H, Silva AMS. Ohmic Heating and Ionic Liquids in Combination for the Indium-Promoted Synthesis of 1-Halo Alkenyl Compounds: Applications to Pd-Catalysed Cross-Coupling Reactions. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501162] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Trofimov BA, Nosyreva VV, Shemyakina OA, Mal’kina AG, Albanov AI. Сhemo- and regioselective modification of adenosine with tertiary cyanopropargylic alcohols. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Chelucci G. Synthesis and Metal-Catalyzed Reactions of gem-Dihalovinyl Systems. Chem Rev 2011; 112:1344-462. [DOI: 10.1021/cr200165q] [Citation(s) in RCA: 323] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Giorgio Chelucci
- Dipartimento di Agraria, Università di Sassari, viale Italia 39, I-07100 Sassari, Italy
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10
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Paliwal SK, Verma AN, Paliwal S. Neglected disease - african sleeping sickness: recent synthetic and modeling advances. Sci Pharm 2011; 79:389-428. [PMID: 21886894 PMCID: PMC3163371 DOI: 10.3797/scipharm.1012-08] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Accepted: 05/10/2011] [Indexed: 01/21/2023] Open
Abstract
Human African Trypanosomiasis (HAT) also called sleeping sickness is caused by subspecies of the parasitic hemoflagellate Trypanosoma brucei that mostly occurs in sub-Saharan Africa. The current chemotherapy of the human trypanosomiases relies on only six drugs, five of which have been developed more than 30 years ago, have undesirable toxic side effects and most of them show drug-resistance. Though development of new anti-trypanosomal drugs seems to be a priority area research in this area has lagged far behind. The given review mainly focus upon the recent synthetic and computer based approaches made by various research groups for the development of newer anti-trypanosomal analogues which may have improved efficacy and oral bioavailability than the present ones. The given paper also attempts to investigate the relationship between the various physiochemical parameters and anti-trypanosomal activity that may be helpful in development of potent anti-trypanosomal agents against sleeping sickness.
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11
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Landelle G, Bergeron M, Turcotte-Savard MO, Paquin JF. Synthetic approaches to monofluoroalkenes. Chem Soc Rev 2011; 40:2867-908. [DOI: 10.1039/c0cs00201a] [Citation(s) in RCA: 243] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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12
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Zhang H, Zhou CB, Chen QY, Xiao JC, Hong R. Monofluorovinyl Tosylate: A Useful Building Block for the Synthesis of Terminal Vinyl Monofluorides via Suzuki−Miyaura Coupling. Org Lett 2010; 13:560-3. [DOI: 10.1021/ol102645g] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- He Zhang
- Key Laboratory of Organofluorine Chemistry and ‡Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Chang-Bing Zhou
- Key Laboratory of Organofluorine Chemistry and ‡Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qing-Yun Chen
- Key Laboratory of Organofluorine Chemistry and ‡Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry and ‡Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ran Hong
- Key Laboratory of Organofluorine Chemistry and ‡Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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13
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Dornbush PJ, Vazquez-Anaya G, Shokar A, Benson S, Rapp M, Wnuk SF, Wrischnik LA, Land KM. AdoHcy hydrolase of Trichomonas vaginalis: Studies of the effects of 5′-modified adenosine analogues and related 6-N-cyclopropyl derivatives. Bioorg Med Chem Lett 2010; 20:7466-8. [DOI: 10.1016/j.bmcl.2010.10.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 09/30/2010] [Accepted: 10/05/2010] [Indexed: 11/24/2022]
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14
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Wnuk SF, Sacasa PR, Restrepo J. Application of germyldesulfonylation reactions to the synthesis of germanium-containing nucleoside analogues. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2010; 28:537-49. [PMID: 20183601 DOI: 10.1080/15257770903054340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Treatment of the protected (E)-5'-deoxy-5'-[(p-toluenesulfonyl)methylene]uridine and adenosine derivatives with tributyl- or triphenylgermane hydride (AIBN/toluene/Delta) effected radical-mediated germyldesulfonylations to give 5'-(tributyl- or triphenylgermyl)methylene-5'-deoxyuridine and adenosine derivatives as single (E)-isomers. Analogous treatment of 2'-deoxy-2'-[(phenylsulfonyl)methylene]uridine with Ph(3)GeH afforded the corresponding vinyl triphenylgermane product. Stereoselective halodegermylation of the (E)-5'-(tributylgermyl)methylene-5'-deoxy nucleosides with N-iodosuccinimide or N-bromosuccinimide provided the Wittig-type (E)-5'-deoxy-5'-(halomethylene) nucleosides quantitatively, while no halodegermylations was observed with the 5'-deoxy-5'-(triphenylgermyl)methylene counterparts. Treatment of the vinyl trialkylgermanes with aqueous trifluoroacetic acid effected protiodegermylation, while vinyl triarylgermanes were stable under the acidic conditions.
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Affiliation(s)
- Stanislaw F Wnuk
- Department of Chemistry & Biochemistry, Florida International University, Miami, Florida, USA.
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15
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De Clercq E. The unabated synthesis of new nucleoside analogues with antiviral potential: a tribute to Morris J. Robins. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2010; 28:586-600. [PMID: 20183603 DOI: 10.1080/15257770903054159] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The furo[2,3-d]pyrimidin-2(3H)-one is the key structural determinant in the exquisitely potent activity of its derivatives (R = 2-deoxyribosyl; R' = p-pentylphenyl) against VZV (varicella-zoster virus) replication. [structure: see text].
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Affiliation(s)
- Erik De Clercq
- Rega Institute for Medical Research, K.U. Leuven, Leuven, Belgium.
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16
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Helguera AM, Rodríguez-Borges JE, Caamaño O, García-Mera X, González MP, Cordeiro MNDS. Design, Synthesis, and Evaluation of Antineoplastic Activity of Novel Carbocyclic Nucleosides. Mol Inform 2010; 29:213-31. [PMID: 27462765 DOI: 10.1002/minf.200900033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Accepted: 01/25/2010] [Indexed: 11/07/2022]
Abstract
Cancer is the leading cause of death among men and women under age 85. Every year, millions of individuals are diagnosed with cancer. But finding new drugs is a complex, expensive, and very time-consuming task. Over the past decade, the cancer research community has begun to address the in silico modeling approaches, such as Quantitative Structure-Activity Relationships (QSAR), as an important alternative tool for targeting potential anticancer drugs. With the compilation of a large dataset of nucleosides synthesized in our laboratories, or elsewhere, and tested in a single cytotoxic assay under the same experimental conditions, we recognized a unique opportunity to attempt to build predictive QSAR models. Early efforts with 2D classification models built from part of this dataset were very encouraging. Here we report a further detailed evaluation of classification models to flag potential anticancer activities derived from a variety of 3D molecular representations. A quantitative 3D-model model that discriminates anticancer compounds from the inactive ones was attained, which allowed the correct classification of 82 % of compounds in such a large and diverse dataset, with only 5 % of false inactives and 11 % of false actives. The model developed here was then used to select and design a new series of nucleosides, by classifying beforehand them as active/inactive anticancer compounds. From the compounds so designed, 22 were synthesized and evaluated for their inhibitory effects on the proliferation of murine leukemia cells (L1210/0), of which 86 % were well-classified as active or inactive, and only two were false actives, corroborating the good predictive ability of the present discriminant model. The results of this study thus provide a valuable tool for the design of novel potent anticancer nucleoside analogues.
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Affiliation(s)
- Aliuska M Helguera
- REQUIMTE, Chemistry Department, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal fax: +351 220402659.,CBQ, Department of Chemistry, Central University of Las Villas, Santa Clara, 54830, Villa Clara, Cuba.,Department of Chemistry, Central University of Las Villas, Santa Clara, 54830, Villa Clara, Cuba
| | - J E Rodríguez-Borges
- CIQ, Chemistry Department, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
| | - Olga Caamaño
- Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, 15706 Santiago de Compostela, Spain fax: +34 981594912
| | - Xerardo García-Mera
- Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, 15706 Santiago de Compostela, Spain fax: +34 981594912.
| | - Maykel Pérez González
- CBQ, Department of Chemistry, Central University of Las Villas, Santa Clara, 54830, Villa Clara, Cuba
| | - M Natália D S Cordeiro
- REQUIMTE, Chemistry Department, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal fax: +351 220402659.
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17
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18
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Sacasa PR, Zayas J, Wnuk SF. Radical-mediated thiodesulfonylation of the vinyl sulfones: Access to (α-fluoro)vinyl sulfides. Tetrahedron Lett 2009; 50:5424-5427. [PMID: 20161068 DOI: 10.1016/j.tetlet.2009.07.063] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Radical-mediated thiodesulfonylation of the vinyl and (α-fluoro)vinyl sulfones, derived from aldehydes and ketones, with aryl thiols in organic or aqueous medium provided access to vinyl and (α-fluoro)vinyl sulfides. The vinyl sulfides were formed predominantly with E stereochemistry independent of the stereochemistry of the starting vinyl sulfones.
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Affiliation(s)
- Pablo R Sacasa
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, USA
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19
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Wnuk SF, Sacasa PR, Lewandowska E, Andrei D, Cai S, Borchardt RT. Synthesis of 5'-functionalized nucleosides: S-Adenosylhomocysteine analogues with the carbon-5' and sulfur atoms replaced by a vinyl or halovinyl unit. Bioorg Med Chem 2008; 16:5424-33. [PMID: 18457953 PMCID: PMC2443866 DOI: 10.1016/j.bmc.2008.04.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2007] [Revised: 04/05/2008] [Accepted: 04/09/2008] [Indexed: 11/17/2022]
Abstract
Adenosine and uridine analogues functionalized with alkenyl or fluoroalkenyl chain at C5' were prepared employing cross-metathesis, Negishi couplings, and Wittig reactions. Metathesis of the protected 5'-deoxy-5'-methyleneadenosine or uridine analogues with six-carbon amino acids (homoallylglycines) in the presence of Grubbs catalysts gave nucleoside analogues with the C5'-C6' double bond. Alternatively, the Pd-catalyzed cross-coupling between the protected 5'-deoxy-5'-(iodomethylene) nucleosides and suitable alkylzinc bromides also provided analogues with alkenyl unit. Stereoselective Pd-catalyzed monoalkylation of 5'-(bromofluoromethylene)-5'-deoxyadenosine with alkylzinc bromides afforded adenosylhomocysteine analogues with a 6'-(fluoro)vinyl motif. The vinylic adenine nucleosides produced time-dependent inactivation of the S-adenosyl-l-homocysteine hydrolases.
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Affiliation(s)
- Stanislaw F Wnuk
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, USA.
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20
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Pathak T. Vinyl sulfone-modified carbohydrates: an inconspicuous group of chiral building blocks. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.01.069] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Wnuk SF, Lalama J, Garmendia CA, Robert J, Zhu J, Pei D. S-Ribosylhomocysteine analogues with the carbon-5 and sulfur atoms replaced by a vinyl or (fluoro)vinyl unit. Bioorg Med Chem 2008; 16:5090-102. [PMID: 18375129 DOI: 10.1016/j.bmc.2008.03.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2008] [Revised: 03/05/2008] [Accepted: 03/10/2008] [Indexed: 11/28/2022]
Abstract
Treatment of the protected ribose or xylose 5-aldehyde with sulfonyl-stabilized fluorophosphonate gave (fluoro)vinyl sulfones. Stannyldesulfonylation followed by iododestannylation afforded 5,6-dideoxy-6-fluoro-6-iodo-d-ribo or xylo-hex-5-enofuranoses. Coupling of the hexenofuranoses with alkylzinc bromides gave 10-carbon ribosyl- and xylosylhomocysteine analogues incorporating a fluoroalkene. The fluoroalkenyl and alkenyl analogues were evaluated for inhibition of Bacillus subtilis S-ribosylhomocysteinase (LuxS). One of the compounds, 3,5,6-trideoxy-6-fluoro-d-erythro-hex-5-enofuranose, acted as a competitive inhibitor of moderate potency (K(I)=96microM).
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Affiliation(s)
- Stanislaw F Wnuk
- Department of Chemistry & Biochemistry, Florida International University, Miami, FL 33199, USA.
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22
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Wnuk SF, Lalama J, Robert J, Garmendia CA. Novel S-ribosylhomocysteine analogues as potential inhibitors of LuxS enzyme. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2008; 26:1051-5. [PMID: 18058535 DOI: 10.1080/15257770701513190] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Selective cross-coupling of the protected 6-fluoro-6-iodo-alpha-D-ribo-hex-5-enofuranose with 2 equivalents of 4-ethoxy-4-oxobutylzinc bromide in the presence of Pd[P(Ph)(3)](4) followed by deprotections gave methyl 5,6,7,8,9-pentadeoxy-6-fluoro-alpha/beta-D-ribo-dec-5(Z)-enofuranuronate; a S-ribosylhomocysteine analogue with the sulfur and carbon-5 atoms replaced by the fluoro(vinyl) unit.
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Affiliation(s)
- Stanislaw F Wnuk
- Department of Chemistry & Biochemistry, Florida International University, Miami, Florida 33199, USA.
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Andrei D, Wnuk SF. S-adenosylhomocysteine analogues with the carbon-5' and sulfur atoms replaced by a vinyl unit. Org Lett 2007; 8:5093-6. [PMID: 17048851 PMCID: PMC2532837 DOI: 10.1021/ol062026m] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cross-metathesis of suitably protected 5'-deoxy-5'-methyleneadenosines with racemic and chiral N-Boc-protected six-carbon amino acids bearing a terminal double bond in the presence of the Hoveyda-Grubbs catalyst gave adenosylhomocysteine analogues with the C5'-C6' double bond. Bromination with pyridinium tribromide and dehydrobromination with DBU followed by standard deprotections yielded the 5'-(bromo)vinyl analogue. [structure: see text]
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De Clercq E. John Montgomery's legacy: carbocyclic adenosine analogues as SAH hydrolase inhibitors with broad-spectrum antiviral activity. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2006; 24:1395-415. [PMID: 16438025 DOI: 10.1080/15257770500265638] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Ever since the S-adenosylhomocysteine (AdoHcy, SAH) hydrolase was recognized as a pharmacological target for antiviral agents (J. A. Montgomery et al., J. Med. Chem. 25:626-629, 1982), an increasing number of adenosine, acyclic adenosine, and carbocyclic adenosine analogues have been described as potent SAH hydrolase inhibitors endowed with broad-spectrum antiviral activity. The antiviral activity spectrum of the SAH hydrolase inhibitors include pox-, rhabdo-, filo-, arena-, paramyxo-, reo-, and retroviruses. Among the most potent SAH hydrolase inhibitors and antiviral agents rank carbocyclic 3-deazaadenosine (C-c3 Ado), neplanocin A, 3-deazaneplanocin A, the 5'-nor derivatives of carbocyclic adenosine (C-Ado, aristeromycin), and the 2-halo (i.e., 2-fluoro) and 6'-R-alkyl (i.e., 6'-R-methyl) derivatives of neplanocin A. These compounds are particularly active against poxviruses (i.e., vaccinia virus), and rhabdoviruses (i.e., vesicular stomatitis virus). The in vivo efficacy of C-c3 Ado and 3-deazaneplanocin A has been established in mouse models for vaccinia virus, vesicular stomatitis virus, and Ebola virus. SAH hydrolase inhibitors such as C-c3Ado and 3-deazaneplanocin A should in thefirst place be considered for therapeutic (or prophylactic) use against poxvirus infections, including smallpox, and hemorrhagic fever virus infections such as Ebola.
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Affiliation(s)
- Erik De Clercq
- Rega Institute for Medical Research, Department of Microbiology and Immunology, K.U. Letven, Minderbroedersstraat 10, B-3000 Leuven, Belgium.
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25
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Andrei D, Wnuk SF. Synthesis of the multisubstituted halogenated olefins via cross-coupling of dihaloalkenes with alkylzinc bromides. J Org Chem 2006; 71:405-8. [PMID: 16388671 PMCID: PMC2527053 DOI: 10.1021/jo051980e] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] The 1-fluoro-1-haloalkenes undergo Pd-catalyzed Negishi cross-couplings with primary alkylzinc bromides to give multisubstituted fluoroalkenes. The alkylation was trans-selective giving pure Z-fluoroalkenes in most cases. The highest yields were obtained with Pd2(dba)3 and PdCl2(dppb) catalysts but the best stereochemical outcome was obtained with less reactive Pd(PPh3)4. The tertiary alkylzincs also produced desired fluoroalkenes in high yields. Coupling of beta,beta-dichlorostyrene with organozinc reagent resulted in the formation of monocoupled product.
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Affiliation(s)
- Daniela Andrei
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199,
| | - Stanislaw F. Wnuk
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199,
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26
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Wang JF, Yang XD, Zhang LR, Yang ZJ, Zhang LH. Synthesis and biological activities of 5′-ethylenic and acetylenic modified l-nucleosides and isonucleosides. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.06.131] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Lewandowska E, Lalama J, Yuan CS, Wnuk SF. Open-chain carbocyclic analogs of adenosine with dihalovinyl unit as potential inhibitors of S-adenosyl-L-homocysteine hydrolase. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2004; 22:1747-55. [PMID: 14533879 DOI: 10.1081/ncn-120023270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Vinylogously extended deoxyeritadenine derivatives were synthesized as acyclic/ carbocyclic analogues of the 6'-halo(homovinyl)adenosines, which are known to be potent inhibitors of S-adenosyl-L-homocysteine hydrolase. Swern oxidation of 9-[3-(t-butyldimethylsilyloxy)-4-hydroxybutyl]adenine (4) followed by Wittig olefination and desilylation gave access to ethyl 6-(adenin-9-yl)-4-hydroxy-2(E)-hexenoate (7) and 5-(adenin-9-yl)-1,1-dibromo-1-penten-3-ol (9). No inhibition of AdoHcy Hydrolase was observed with 7 and 9.
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Affiliation(s)
- Elzbieta Lewandowska
- Department of Chemistry, Florida International University, Miami, Florida 33199, USA
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28
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Wnuk SF, Sacasa PR, Crain LN, Lewandowska E, Zhang J, Borchardt RT. Stereocontrolled synthesis of diene and enyne sugar-modified nucleosides and their interaction with S-adenosyl-L-homocysteine hydrolase. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2003; 22:783-5. [PMID: 14565278 DOI: 10.1081/ncn-120022634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Conjugated diene 5-7 and enyne 8 analogs derived from adenosine and uridine were synthesized employing Pd-catalyzed cross-coupling reactions.
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Affiliation(s)
- Stanislaw F Wnuk
- Department of Chemistry, Florida International University, Miami, Florida 33199, USA.
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29
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Wnuk SF, Valdez CA, Valdez NX. RHODIUM(I)-CATALYZED REGIO- AND STEREOSELECTIVE CHLOROESTERIFICATION OF FURANOSE-DERIVED TERMINAL ALKYNES WITH ETHYL CHLOROFORMATE. J Carbohydr Chem 2001. [DOI: 10.1081/car-100102544] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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30
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Wnuk SF, Yuan CS, Borchardt RT, Morris JR. Design and Biological Evaluation of New Mechanismbased Inhibitors ofS-Adenosyl-L-homocysteine Hydrolase. ACTA ACUST UNITED AC 1999. [DOI: 10.1080/15257779908041506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Liu DY, Gorrod JW. Metabolic N1-Oxidation of 9-Benzyladenine and Isomeric 9-(Nitrobenzyl)Adenines by Hamster Hepatic Microsomes. ACTA ACUST UNITED AC 1997; 13:195-214. [DOI: 10.1515/dmdi.1997.13.3.195] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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32
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Yuan CS, Liu S, Wnuk SF, Robins MJ, Borchardt RT. Design and synthesis of S-adenosylhomocysteine hydrolase inhibitors as broad-spectrum antiviral agents. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/s1075-8593(96)80103-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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