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4-(N-Boc-amino)-1Н-1,2,3-triazolecarbothioamides in the synthesis of a new heterocyclic [1,2,3]triazolo[4,5-e][1,4]thiazepine system. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-02989-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Nazeri MT, Shaabani A, Notash B. Chemoselective synthesis of fully substituted pyrroles via a one-pot four-component isocyanide-based reaction. Org Biomol Chem 2021; 19:3722-3734. [PMID: 33908431 DOI: 10.1039/d0ob02339f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Small-ring heterocycles comprising pyrrole and pyrazole are well known for their rich biological properties. In this article, an efficient green sonochemical approach was designed for the synthesis of novel, fully substituted pyrroles connected to pyrazole scaffolds via a one-pot, four-component isocyanide-based sequential reaction. This reaction was carried out using various 5-amino-pyrazoles, aldehydes, dialkyl acetylenedicarboxylates and isocyanides for the synthesis of fully functionalized pyrroles with high chemoselectivity in the presence of a catalytic amount of PTSA·H2O, in good to excellent yields under ultrasound irradiation. This waste-free (-H2O) reaction exhibited a high atom economy and step economy via creating four new bonds, including two C-N and two C-C bonds, and the formation of two five-member heterocycles which are connected in a single operation. The mechanism of this four-component domino process involved sequential imination-dipolar cyclization-[1,5]-H shift reactions. The synthesized compounds possess interesting fluorescence features, and the bioactive scaffolds might attract great interest in the fields of clinical diagnostics and biomedical research in the future.
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Affiliation(s)
- Mohammad Taghi Nazeri
- Faculty of Chemistry, Shahid Beheshti University, G.C., P.O. Box 19396-4716, Tehran, Iran.
| | - Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, G.C., P.O. Box 19396-4716, Tehran, Iran. and Peoples' Friendship University of Russia (RUDN University), 6, Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
| | - Behrouz Notash
- Faculty of Chemistry, Shahid Beheshti University, G.C., P.O. Box 19396-4716, Tehran, Iran.
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Shaabani A, Nazeri MT, Afshari R. 5-Amino-pyrazoles: potent reagents in organic and medicinal synthesis. Mol Divers 2018; 23:751-807. [PMID: 30552550 DOI: 10.1007/s11030-018-9902-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/04/2018] [Indexed: 12/31/2022]
Abstract
5-Amino-pyrazoles have proven to be a class of fascinating and privileged organic tools for the construction of diverse heterocyclic or fused heterocyclic scaffolds. This review presents comprehensively the applications of 5-amino-pyrazoles as versatile synthetic building blocks in the synthesis of remarkable organic molecules with an emphasis on versatile functionalities. Following a brief introduction of synthesis methods, planning strategies to construct organic compounds, particularly diverse heterocyclic scaffolds, such as poly-substituted heterocyclic compounds and fused heterocyclic compounds via 5-amino-pyrazoles, have been summarized. Fused heterocycles are classified as bicyclic, tricyclic, tetracyclic, and spiro-fused pyrazole derivatives. These outstanding compounds synthesized via wide variety of approaches include conventional reactions, one-pot multi-component reactions, cyclocondensation, cascade/tandem protocols, and coupling reactions. 5-Amino-pyrazoles represent a class of promising functional reagents, similar to the biologically active compounds, highlighted with diverse applications especially in the field of pharmaceutics and medicinal chemistry. Notably, this critical review covers the articles published from 1981 to 2018.
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Affiliation(s)
- Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Mohammad Taghi Nazeri
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran
| | - Ronak Afshari
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran
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Benzyl (R)-2-(Acetylthio)Propanoate: A Promising Sulfur Isoster of (R)-Lactic Acid and Ester Precursors. MOLBANK 2018. [DOI: 10.3390/m1010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this paper, an accessible chiral pool synthesis of benzyl (R)-2-(acetylthio)propanoate (acetylthiolactate), which is less odorous than the methyl or ethyl analogue, was performed through a clean SN2 displacement reaction using available AcSK with tris[2-(2-methoxyethoxy)]ethylamine (TDA-1), starting from commercially available benzyl (S)-lactate in 76%, 94% ee (2 steps). Deprotection of the acetyl group using N,N-dimethylethylenediamine afforded benzyl (R)-2-sulfanylpropanoate in 93% yield with 90% ee. These two sulfur-containing benzyl esters were sufficiently odorless to be purified by column chromatography. Direct HPLC analysis was applied to determine the enantiomeric excess without thiazolidin-4-one derivatizations. A complementary debenzylation of benzyl (R)-2-(acetylthio)propanoate was also performed using HBr/AcOH to afford (R)-2-(acetylthio)propanoic acid without critical racemization in 92% yield with 92% ee.
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Sasaki R, Tanabe Y. Chiral syntheses of methyl (R)-2-Sulfanylcarboxylic esters and acids with optical purity determination using HPLC. Chirality 2018; 30:816-827. [PMID: 29659053 DOI: 10.1002/chir.22860] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/06/2018] [Accepted: 02/08/2018] [Indexed: 12/16/2022]
Abstract
Accessible chiral syntheses of 3 types of (R)-2-sulfanylcarboxylic esters and acids were performed: (R)-2-sulfanylpropanoic (thiolactic) ester (53%, 98%ee) and acid (39%, 96%ee), (R)-2-sulfanylsucciinic diester (59%, 96%ee), and (R)-2-mandelic ester (78%, 90%ee) and acid (59%, 96%ee). The present practical and robust method involves (i) clean SN 2 displacement of methanesulfonates of (S)-2-hydroxyesters by using commercially available AcSK with tris(2-[2-methoxyethoxy])ethylamine and (ii) sufficiently mild deacetylation. The optical purity was determined by the corresponding (2R,5R)-trans-thiazolidin-4-one and (2S,5R)-cis-thiazolidin-4-one derivatives based on accurate high-performance liquid chromatography analysis with high-resolution efficiency. Compared with the reported method utilizing AcSCs (generated from AcSH and CsCO3 ), the present method has several advantages, that is, the use of odorless AcCOSK reagent, reasonable reaction velocity, isolation procedure, and accurate, reliable optical purity determination. The use of accessible AcSK has advantages because of easy-to-handle odorless and hygroscopic solid that can be used in a bench-top procedure. The Ti(OiPr)4 catalyst promoted smooth trans-cyclo-condensation to afford (2R,5R)-trans-thiazolidin-4-one formation of (R)-2-sulfanylcarboxylic esters with available N-(benzylidene)methylamine under neutral conditions without any racemization, whereas (2S,5R)-cis-thiazollidin-4-ones were obtained via cis-cyclo-condensation and no catalysts. Direct high-performance liquid chromatography analysis of methyl (R)-mandelate was also performed; however, the resolution efficiency was inferior to that of the thaizolidin-4-one derivatizations.
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Affiliation(s)
- Ryosuke Sasaki
- Department of Chemistry, School of Science & Technology, Kwansei Gakuin University, Sanda, Japan
| | - Yoo Tanabe
- Department of Chemistry, School of Science & Technology, Kwansei Gakuin University, Sanda, Japan
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Sardella R, Ianni F, Di Michele A, Di Capua A, Carotti A, Anzini M, Natalini B. Enantioresolution and stereochemical characterization of two chiral sulfoxides endowed with COX-2 inhibitory activity. Chirality 2017; 29:536-540. [DOI: 10.1002/chir.22724] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/08/2017] [Accepted: 06/02/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Roccaldo Sardella
- Department of Pharmaceutical Sciences; University of Perugia; Perugia Italy
| | - Federica Ianni
- Department of Pharmaceutical Sciences; University of Perugia; Perugia Italy
| | | | - Angela Di Capua
- Department of Biotechnology, Chemistry and Pharmacy; University of Siena; Siena Italy
- Griffith Institute for Drug Discovery; Griffith University; Nathan Queensland Australia
| | - Andrea Carotti
- Department of Pharmaceutical Sciences; University of Perugia; Perugia Italy
| | - Maurizio Anzini
- Department of Biotechnology, Chemistry and Pharmacy; University of Siena; Siena Italy
| | - Benedetto Natalini
- Department of Pharmaceutical Sciences; University of Perugia; Perugia Italy
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Xu Y. Recent Progress on Bile Acid Receptor Modulators for Treatment of Metabolic Diseases. J Med Chem 2016; 59:6553-79. [DOI: 10.1021/acs.jmedchem.5b00342] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yanping Xu
- Lilly Research
Laboratories, Eli Lilly and Company, Lilly Corporate Center, DC 1910, Indianapolis, Indiana 46285, United States
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Sindhu T, Srinivasan P. Identification of potential dual agonists of FXR and TGR5 using e-pharmacophore based virtual screening. MOLECULAR BIOSYSTEMS 2015; 11:1305-18. [DOI: 10.1039/c5mb00137d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Farnesoid X receptor and Takeda G-protein-coupled receptor-5 are well known bile acid receptors and act as promising targets for the drug development and treatment of diabetes.
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Affiliation(s)
- Thangaraj Sindhu
- Molecular Biology Lab
- Department of Bioinformatics
- Alagappa University
- Karaikudi
- India
| | - Pappu Srinivasan
- Molecular Biology Lab
- Department of Bioinformatics
- Alagappa University
- Karaikudi
- India
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Ianni F, Pataj Z, Gross H, Sardella R, Natalini B, Lindner W, Lämmerhofer M. Direct enantioseparation of underivatized aliphatic 3-hydroxyalkanoic acids with a quinine-based zwitterionic chiral stationary phase. J Chromatogr A 2014; 1363:101-8. [DOI: 10.1016/j.chroma.2014.03.060] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 03/19/2014] [Accepted: 03/21/2014] [Indexed: 01/10/2023]
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Sardella R, Lisanti A, Carotti A, Blasi P, Lindner W, Natalini B. Ketoprofen enantioseparation with a Cinchona
alkaloid based stationary phase: Enantiorecognition mechanism and release studies. J Sep Sci 2014; 37:2696-703. [DOI: 10.1002/jssc.201400630] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 07/03/2014] [Accepted: 07/04/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Roccaldo Sardella
- Department of Pharmaceutical Sciences; University of Perugia; Perugia Italy
| | - Antonella Lisanti
- Department of Pharmaceutical Sciences; University of Perugia; Perugia Italy
| | - Andrea Carotti
- Department of Pharmaceutical Sciences; University of Perugia; Perugia Italy
| | - Paolo Blasi
- Department of Pharmaceutical Sciences; University of Perugia; Perugia Italy
| | - Wolfgang Lindner
- Department of Analytical Chemistry; University of Vienna; Vienna Austria
| | - Benedetto Natalini
- Department of Pharmaceutical Sciences; University of Perugia; Perugia Italy
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Baytas SN, Inceler N, Yilmaz A, Olgac A, Menevse S, Banoglu E, Hamel E, Bortolozzi R, Viola G. Synthesis, biological evaluation and molecular docking studies of trans-indole-3-acrylamide derivatives, a new class of tubulin polymerization inhibitors. Bioorg Med Chem 2014; 22:3096-104. [PMID: 24816066 PMCID: PMC4091680 DOI: 10.1016/j.bmc.2014.04.027] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 04/11/2014] [Accepted: 04/15/2014] [Indexed: 11/24/2022]
Abstract
In this study, we synthesized a series of trans-indole-3-acrylamide derivatives (3a-k) and investigated their activity for inhibition of cell proliferation against five human cancer cell lines (HeLa, MCF7, MDA-MB-231, Raji and HL-60) by MTT assay. Compound 3e showed significant antiproliferative activity against both the Raji and HL-60 cell lines with IC50 values of 9.5 and 5.1 μM, respectively. Compound 3e also exhibited moderate inhibitory activity on tubulin polymerization (IC50=17 μM). Flow cytometric analysis of cultured cells treated with 3e also demonstrated that the compound caused cell cycle arrest at the G2/M phase in HL-60 and HeLa cells. Moreover, 3e, the most active compound, caused an apoptotic cell death through the activation of caspase-3. Docking simulations suggested that 3e binds to the colchicine site of tubulin.
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Affiliation(s)
- Sultan Nacak Baytas
- Division of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Etiler, Ankara, Turkey.
| | - Nazan Inceler
- Division of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Etiler, Ankara, Turkey
| | - Akin Yilmaz
- Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, 06500 Besevler, Ankara, Turkey
| | - Abdurrahman Olgac
- Division of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Etiler, Ankara, Turkey
| | - Sevda Menevse
- Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, 06500 Besevler, Ankara, Turkey
| | - Erden Banoglu
- Division of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Etiler, Ankara, Turkey
| | - Ernest Hamel
- Screening Technologies Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, Frederick National Laboratory for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702, United States
| | - Roberta Bortolozzi
- Department of Women's and Children's Health, Laboratory of Oncohematology, University of Padova, 35128 Padova, Italy
| | - Giampietro Viola
- Department of Women's and Children's Health, Laboratory of Oncohematology, University of Padova, 35128 Padova, Italy
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Marinozzi M, Marcelli G, Carotti A, Natalini B. One-pot, telescoped synthesis of N-aryl-5-aminopyrazoles from anilines in environmentally benign conditions. RSC Adv 2014. [DOI: 10.1039/c3ra47541g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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13
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Merk D, Steinhilber D, Schubert-Zsilavecz M. Characterizing ligands for farnesoid X receptor – availablein vitrotest systems for farnesoid X receptor modulator development. Expert Opin Drug Discov 2013; 9:27-37. [DOI: 10.1517/17460441.2014.860129] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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