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Pasha GF, Asghari S, Tajbakhsh M, Mohseni M. Synthesis and antimicrobial evaluation of some new bicyclopyrazolone‐based thiopyran ring systems. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Sakineh Asghari
- Department of Organic Chemistry, Faculty of ChemistryUniversity of Mazandaran Babolsar Iran
- Nano and Biotechnology Research GroupUniversity of Mazandaran Babolsar Iran
| | - Mahmood Tajbakhsh
- Department of Organic Chemistry, Faculty of ChemistryUniversity of Mazandaran Babolsar Iran
| | - Mojtaba Mohseni
- Department of Microbiology, Faculty of ScienceUniversity of Mazandaran Babolsar Iran
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2
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Srinivasulu V, Reddy A, Mazitschek R, Lukens AK, Wirth DF, Li L, Naumov P, O'Connor MJ, Al-Tel TH. Intramolecular Diaza-Diels-Alder Protocol: A New Diastereoselective and Modular One-Step Synthesis of Constrained Polycyclic Frameworks. Chemistry 2017; 23:4137-4148. [PMID: 27997727 DOI: 10.1002/chem.201605231] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 12/18/2016] [Indexed: 12/29/2022]
Abstract
Phenotype-based screening of diverse compound collections generated by privileged substructure-based diversity-oriented synthesis (pDOS) is considered one of the prominent approaches in the discovery of novel drug leads. However, one key challenge that remains is the development of efficient and modular synthetic routes toward the facile access of privileged small-molecule libraries with skeletal and stereochemical complexity and drug-like properties. In this regard, a novel and diverse one-pot procedure for the diastereoselective synthesis of privileged polycyclic benzopyrans and benzoxepines is described herein. These unexplored chemotypes were accessed by utilizing an acid-mediated diaza-Diels-Alder reaction of 2-allyloxy- and/or homoallyloxy benzaldehyde with 2-aminoazine building blocks. Profiling of representative analogues against blood-stage Plasmodium falciparum parasites identified three lead candidates with low micromolar antimalarial activity.
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Affiliation(s)
- Vunnam Srinivasulu
- Sharjah Institute for Medical Research, University of Sharjah, P.O. Box 27272, Sharjah, UAE
| | - Amarnath Reddy
- Sharjah Institute for Medical Research, University of Sharjah, P.O. Box 27272, Sharjah, UAE
| | - Ralph Mazitschek
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge Street, Boston, MA, 02114, USA.,Department of Immunology and Infectious Disease, Harvard T. H. Chan School of Public Health, Boston, MA, 02115, USA.,Broad Institute of Harvard and, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Amanda K Lukens
- Department of Immunology and Infectious Disease, Harvard T. H. Chan School of Public Health, Boston, MA, 02115, USA.,Broad Institute of Harvard and, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Dyann F Wirth
- Department of Immunology and Infectious Disease, Harvard T. H. Chan School of Public Health, Boston, MA, 02115, USA.,Broad Institute of Harvard and, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Liang Li
- Core Technologies Platform, New York University Abu Dhabi, P.O. Box 129188, Saadiyat Island, Abu Dhabi, UAE
| | - Panče Naumov
- Department of Chemistry, New York University Abu Dhabi, P.O. Box 129188, Saadiyat Island, Abu Dhabi, UAE
| | - Matthew John O'Connor
- Core Technologies Platform, New York University Abu Dhabi, P.O. Box 129188, Saadiyat Island, Abu Dhabi, UAE
| | - Taleb H Al-Tel
- Sharjah Institute for Medical Research, University of Sharjah, P.O. Box 27272, Sharjah, UAE.,College of Pharmacy, University of Sharjah, P.O. Box 27272, Sharjah, UAE
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Ghosh AK, Brindisi M. Achmatowicz Reaction and its Application in the Syntheses of Bioactive Molecules. RSC Adv 2016; 6:111564-111598. [PMID: 28944049 PMCID: PMC5603243 DOI: 10.1039/c6ra22611f] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Substituted pyranones and tetrahydropyrans are structural subunits of many bioactive natural products. Considerable efforts are devoted toward the chemical synthesis of these natural products due to their therapeutic potential as well as low natural abundance. These embedded pyranones and tetrahydropyran structural motifs have been the subject of synthetic interest over the years. While there are methods available for the syntheses of these subunits, there are issues related to regio and stereochemical outcomes, as well as versatility and compatibility of reaction conditions and functional group tolerance. The Achmatowicz reaction, an oxidative ring enlargement of furyl alcohol, was developed in the 1970s. The reaction provides a unique entry to a variety of pyranone derivatives from functionalized furanyl alcohols. These pyranones provide convenient access to substituted tetrahydropyran derivatives. This review outlines general approaches to the synthesis of tetrahydropyrans, covering general mechanistic aspects of the Achmatowicz reaction or rearrangement with an overview of the reagents utilized for the Achmatowicz reaction. The review then focuses on the synthesis of functionalized tetrahydropyrans and pyranones and their applications in the synthesis of natural products and medicinal agents.
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Affiliation(s)
- Arun K. Ghosh
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Margherita Brindisi
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA
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Eagan JM, Hori M, Wu J, Kanyiva KS, Snyder SA. Synthesis and Applications of Hajos-Parrish Ketone Isomers. Angew Chem Int Ed Engl 2015; 54:7842-6. [PMID: 25974879 PMCID: PMC4737474 DOI: 10.1002/anie.201500925] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 03/19/2015] [Indexed: 11/12/2022]
Abstract
Numerous natural products possess ring systems and functionality for which Hajos-Parrish ketone isomers with a transposed methyl group (termed "iso-Hajos-Parrish ketones") would be of value. However, such building blocks have not been exploited to the same degree as the more typical Hajos-Parrish hydrindane. An efficient three-step synthesis of such materials was fueled by a simple method for the rapid preparation of highly functionalized cyclopentenones, several of which are new chemical entities that would be challenging to access through other approaches. Furthermore, one iso-Hajos-Parrish ketone was converted into two distinct natural product analogues and one natural product. As one indication of the value of these new building blocks, that latter target was obtained in 10 steps, having previously been accessed in 18 steps using the Hajos-Parrish ketone.
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Affiliation(s)
- James M Eagan
- Dept. of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027 (USA)
| | - Masahiro Hori
- Dept. of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027 (USA)
| | - Jianbin Wu
- Dept. of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458 (USA) http://www.scripps.edu/snyder/index.htm
| | | | - Scott A Snyder
- Dept. of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027 (USA).
- Dept. of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458 (USA) http://www.scripps.edu/snyder/index.htm.
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Zhu L, Song L, Tong R. Diastereoselective Reductive Ring Expansion of Spiroketal Dihydropyranones to cis-Fused Bicyclic Ethers. Org Lett 2012; 14:5892-5. [DOI: 10.1021/ol302813e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Liangyu Zhu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Liyan Song
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Rongbiao Tong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Design and synthesis of novel tetrahydro-2H-Pyrano[3,2-c]pyridazin-3(6H)-one derivatives as potential anticancer agents. Eur J Med Chem 2010; 45:5724-31. [PMID: 20884086 DOI: 10.1016/j.ejmech.2010.09.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2010] [Revised: 09/01/2010] [Accepted: 09/01/2010] [Indexed: 11/21/2022]
Abstract
Polyfunctional tetrahydro-2H-pyrano[3,2-c]pyridazin-3(6H)-one derivatives were synthesized and biologically evaluated as novel anticancer agents. These motifs were produced by a five-step reaction sequence in which the Achmatowicz oxidative cyclization, is the basic core for such synthesis. Compounds 15f, 16c, and 16d showed antiproliferative activity against the SK-BR-3 breast cancer cell line. Importantly, 16c and 16d showed the highest efficacy, being approximately 30-fold more potent against SK-BR-3 (IC50 0.21 and 0.15 μM, respectively) compared to other cancer cell lines tested. In addition, 16c and 16d displayed about 295 fold less toxicity against normal breast cell line MCF10A compared to SK-BR-3 breast cancer cells. These compounds form the foundation for further investigation in our continuing efforts to develop potent anticancer agents.
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