1
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Chiu CH, Tan JJY, Mondal S, Lin CH, Mong KKT. Sulfoglycolipids and Related Analogues of Mycobacterium tuberculosis: Chemical Synthesis and Immunological Studies. ChemMedChem 2023; 18:e202300399. [PMID: 37788979 DOI: 10.1002/cmdc.202300399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/05/2023]
Abstract
Mycobacterium tuberculosis (Mtb) causes tuberculosis as one major threat to human health, which has been deteriorated owing to the emerging multidrug resistance. Mtb contains a complex lipophilic cell wall structure that is important for bacterial persistence. Among the lipid components, sulfoglycolipids (SGLs), known to induce immune cell responses, are composed of a trehalose core attached with a conserved sulfate group and 1-4 fatty acyl chains in an asymmetric pattern. At least one of these acyl chains is polymethylated with 3-12 methyl branches. Although Mtb SGL can be isolated from bacterial culture, resulting SGL is still a homologous mixture, impeding accurate research studies. This up-to-date review covers the chemical synthesis and immunological studies of Mtb SGLs and structural analogues, with an emphasis on the development of new glycosylation methods and the asymmetric synthesis of polymethylated scaffolds. Both are critical to advance further research on biological functions of these complicated SGLs.
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Affiliation(s)
- Cheng-Hsin Chiu
- Applied Chemistry Department, National Yang Ming Chiao Tung University, No. 1001, University Road, Hsinchu City, 30010, Taiwan (China
| | - Janet Jia-Yin Tan
- Institute of Biological Chemistry, Academia Sinica, No. 128, Academia Road Section 2, Nan-Kang, 11529, Taiwan (China
| | - Soumik Mondal
- Applied Chemistry Department, National Yang Ming Chiao Tung University, No. 1001, University Road, Hsinchu City, 30010, Taiwan (China
| | - Chun-Hung Lin
- Institute of Biological Chemistry, Academia Sinica, No. 128, Academia Road Section 2, Nan-Kang, 11529, Taiwan (China
- Department of Chemistry and Institute of Biochemical Sciences, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan (China
| | - Kwok-Kong Tony Mong
- Applied Chemistry Department, National Yang Ming Chiao Tung University, No. 1001, University Road, Hsinchu City, 30010, Taiwan (China
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2
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Mondal S, Tseng CJ, Tan JJY, Lin DY, Lin HY, Weng JH, Lin CH, Mong KKT. Tunable Strategy for the Asymmetric Synthesis of Sulfoglycolipids from Mycobacterium tuberculosis To Elucidate the Structure and Immunomodulatory Property Relationships. Angew Chem Int Ed Engl 2023; 62:e202212514. [PMID: 36349422 DOI: 10.1002/anie.202212514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Indexed: 11/11/2022]
Abstract
We developed a versatile asymmetric strategy to synthesize different classes of sulfoglycolipids (SGLs) from Mycobacterium tuberculosis. The strategy features the use of asymmetrically protected trehaloses, which were acquired from the glycosylation of TMS α-glucosyl acceptors with benzylidene-protected thioglucosyl donors. The positions of the protecting groups at the donors and acceptors can be fine-tuned to obtain different protecting-group patterns, which is crucial for regioselective acylation and sulfation. In addition, a chemoenzymatic strategy was established to prepare the polymethylated fatty acid building blocks. The strategy employs inexpensive lipase as a desymmetrization agent in the preparation of the starting substrate and readily available chiral oxazolidinone as a chirality-controlling agent in the construction of the polymethylated fatty acids. A subsequent investigation on the immunomodulatory properties of each class of SGLs showed how the structures of SGLs impact the host innate immunity response.
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Affiliation(s)
- Soumik Mondal
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
| | - Chieh-Jen Tseng
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
| | - Janet Jia-Yin Tan
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan
| | - Ding-Yuan Lin
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
| | - Hsien-Ya Lin
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan
| | - Jui-Hsia Weng
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan
| | - Chun-Hung Lin
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan.,Graduate Institute of Biotechnology and Biotechnology Center, National Chung-Hsing University, Taichung, 40227, Taiwan.,Department of Chemistry and Institute of Biochemical Sciences, National Taiwan University, Taipei, 10617, Taiwan
| | - Kwok-Kong Tony Mong
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
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3
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Chang CC, Jan HM, Tseng CJ, Mondal S, Abera AB, Hsieh MY, Yang TC, Muthusamy S, Huang SC, Lin CH, Tony Mong KK. Metabolic Isolation, Stereochemical Determination, and Total Synthesis of Predominant Native Cholesteryl Phosphatidyl-α-glucoside from Carcinogenic Helicobacter pylori. Org Lett 2022; 24:5045-5050. [PMID: 35816729 DOI: 10.1021/acs.orglett.2c01815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the isolation and stereochemical determination of the predominant native cholesteryl 6-O-phosphatidyl α-glucoside (CPG) from Helicobacter pylori via an integrated biological and chemical strategy. The strategy employed (i) the metabolic isolation of a CPG analogue and (ii) the enzymatic degradation of the analogue to obtain the native lactobacillic acid for the stereochemical determination. The absolute stereochemistry of the acid was found to be 11R and 12S. Using the new stereochemical data, we accomplished the total synthesis of predominant native CPG and other predominant αCG derivatives.
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Affiliation(s)
- Chia-Chen Chang
- Applied Chemistry Department, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu City 300093Taiwan, R.O.C
| | - Hau-Ming Jan
- Institute of Biological Chemistry, Academia Sinica, No.128 Academia Road Section 2, Nan-Kang, Taipei 11529, Taiwan
| | - Chieh-Jen Tseng
- Applied Chemistry Department, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu City 300093Taiwan, R.O.C
| | - Soumik Mondal
- Applied Chemistry Department, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu City 300093Taiwan, R.O.C
| | - Andualem Bahiru Abera
- Institute of Biological Chemistry, Academia Sinica, No.128 Academia Road Section 2, Nan-Kang, Taipei 11529, Taiwan.,Molecular and Biological Agricultural Sciences, Taiwan International Graduate Program, Academia Sinica, Taipei 11529, Taiwan.,Graduate Institute of Biotechnology and Biotechnology Center, National Chung-Hsing University, Taichung 40227, Taiwan
| | - Ming-Yen Hsieh
- Institute of Biological Chemistry, Academia Sinica, No.128 Academia Road Section 2, Nan-Kang, Taipei 11529, Taiwan
| | - Tsai-Chen Yang
- Institute of Biological Chemistry, Academia Sinica, No.128 Academia Road Section 2, Nan-Kang, Taipei 11529, Taiwan
| | - Sasikala Muthusamy
- Institute of Biological Chemistry, Academia Sinica, No.128 Academia Road Section 2, Nan-Kang, Taipei 11529, Taiwan.,Molecular and Biological Agricultural Sciences, Taiwan International Graduate Program, Academia Sinica, Taipei 11529, Taiwan.,Graduate Institute of Biotechnology and Biotechnology Center, National Chung-Hsing University, Taichung 40227, Taiwan
| | - Sheng-Cih Huang
- Applied Chemistry Department, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu City 300093Taiwan, R.O.C
| | - Chun-Hung Lin
- Institute of Biological Chemistry, Academia Sinica, No.128 Academia Road Section 2, Nan-Kang, Taipei 11529, Taiwan.,Molecular and Biological Agricultural Sciences, Taiwan International Graduate Program, Academia Sinica, Taipei 11529, Taiwan.,Graduate Institute of Biotechnology and Biotechnology Center, National Chung-Hsing University, Taichung 40227, Taiwan.,Department of Chemistry and Institute of Biochemical Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - Kwok-Kong Tony Mong
- Applied Chemistry Department, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu City 300093Taiwan, R.O.C
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4
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Burchill L, Williams SJ. From the banal to the bizarre: unravelling immune recognition and response to microbial lipids. Chem Commun (Camb) 2022; 58:925-940. [PMID: 34989357 DOI: 10.1039/d1cc06003a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Microbes produce a rich array of lipidic species that through their location in the cell wall and ability to mingle with host lipids represent a privileged class of immune-active molecules. Lipid-sensing immunity recognizes microbial lipids from pathogens and commensals causing immune responses. Yet microbial lipids are often heterogeneous, in limited supply and in some cases their structures are incompletely defined. Total synthesis can assist in structural determination, overcome supply issues, and provide access to high-purity, homogeneous samples and analogues. This account highlights synthetic approaches to lipidic species from pathogenic and commensal bacteria and fungi that have supported immunological studies involving lipid sensing through the pattern recognition receptor Mincle and cell-mediated immunity through the CD1-T cell axis.
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Affiliation(s)
- Laura Burchill
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Spencer J Williams
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
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5
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Kumar P, Huang W, Shukhman D, Camarda FM, Laughlin ST. Stable cyclopropene-containing analogs of the amino acid neurotransmitter glutamate. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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6
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Reinink P, Buter J, Mishra VK, Ishikawa E, Cheng TY, Willemsen PTJ, Porwollik S, Brennan PJ, Heinz E, Mayfield JA, Dougan G, van Els CA, Cerundolo V, Napolitani G, Yamasaki S, Minnaard AJ, McClelland M, Moody DB, Van Rhijn I. Discovery of Salmonella trehalose phospholipids reveals functional convergence with mycobacteria. J Exp Med 2019; 216:757-771. [PMID: 30804000 PMCID: PMC6446866 DOI: 10.1084/jem.20181812] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/08/2018] [Accepted: 02/01/2019] [Indexed: 01/11/2023] Open
Abstract
Salmonella species are among the world's most prevalent pathogens. Because the cell wall interfaces with the host, we designed a lipidomics approach to reveal pathogen-specific cell wall compounds. Among the molecules differentially expressed between Salmonella Paratyphi and S. Typhi, we focused on lipids that are enriched in S. Typhi, because it causes typhoid fever. We discovered a previously unknown family of trehalose phospholipids, 6,6'-diphosphatidyltrehalose (diPT) and 6-phosphatidyltrehalose (PT). Cardiolipin synthase B (ClsB) is essential for PT and diPT but not for cardiolipin biosynthesis. Chemotyping outperformed clsB homology analysis in evaluating synthesis of diPT. DiPT is restricted to a subset of Gram-negative bacteria: large amounts are produced by S. Typhi, lower amounts by other pathogens, and variable amounts by Escherichia coli strains. DiPT activates Mincle, a macrophage activating receptor that also recognizes mycobacterial cord factor (6,6'-trehalose dimycolate). Thus, Gram-negative bacteria show convergent function with mycobacteria. Overall, we discovered a previously unknown immunostimulant that is selectively expressed among medically important bacterial species.
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Affiliation(s)
- Peter Reinink
- Department of Infectious Diseases and Immunology, School of Veterinary Medicine, Utrecht University, Utrecht, Netherlands.,Department of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA
| | - Jeffrey Buter
- Department of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA
| | - Vivek K Mishra
- Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands
| | - Eri Ishikawa
- Department of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Osaka, Japan.,Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Tan-Yun Cheng
- Department of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA
| | - Peter T J Willemsen
- Wageningen Bioveterinary Research, Department of Infection Biology, Lelystad, Netherlands
| | - Steffen Porwollik
- Department of Microbiology and Molecular Genetics, University of California, Irvine, Irvine, CA
| | - Patrick J Brennan
- Department of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA
| | - Eva Heinz
- Wellcome Trust Sanger Institute, Hinxton, UK
| | - Jacob A Mayfield
- Department of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA
| | | | - Cécile A van Els
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - Vincenzo Cerundolo
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Giorgio Napolitani
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Sho Yamasaki
- Department of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Osaka, Japan.,Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Adriaan J Minnaard
- Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands
| | - Michael McClelland
- Department of Microbiology and Molecular Genetics, University of California, Irvine, Irvine, CA
| | - D Branch Moody
- Department of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA
| | - Ildiko Van Rhijn
- Department of Infectious Diseases and Immunology, School of Veterinary Medicine, Utrecht University, Utrecht, Netherlands .,Department of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA
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7
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Edwards A, Rubin M. Directed Cu(I)-Catalyzed Carbomagnesiation of 1-Arylcycloprop-2-ene-1-carboxamides En Route to Densely Substituted Functionalized Cyclopropanes. J Org Chem 2018; 83:8426-8448. [PMID: 29929370 DOI: 10.1021/acs.joc.8b01063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Copper-catalyzed, directed addition of Grignard reagents across the strained C═C bond of cyclopropene-3-carboxamides was developed. It was demonstrated that the amide functionality serves as an ultimate directing group allowing for highly efficient control of diastereoselectivity of addition including stereoselectivity of electrophilic trapping with prochiral aldehydes. Also, regioselectivity of carbomagnesiation of cyclopropenes with a monosubstituted double bond is investigated. It was shown that in many cases this selectivity is controlled by steric factors and allows for preparation of products with a "reversed" regiochemistry.
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Affiliation(s)
- Andrew Edwards
- Department of Chemistry , University of Kansas , 1567 Irving Hill Road , Lawrence , Kansas 66045 , United States
| | - Michael Rubin
- Department of Chemistry , University of Kansas , 1567 Irving Hill Road , Lawrence , Kansas 66045 , United States.,Department of Chemistry , North Caucasus Federal University , 1a Pushkin Street , Stavropol 355009 , Russian Federation
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8
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Maslivetc V, Barrett C, Aksenov NA, Rubina M, Rubin M. Intramolecular nucleophilic addition of carbanions generated from N-benzylamides to cyclopropenes. Org Biomol Chem 2018; 16:285-294. [PMID: 29242861 PMCID: PMC5755969 DOI: 10.1039/c7ob02068f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An unusual reaction is described, involving a formal intramolecular nucleophilic substitution of bromocyclopropanes with nitrogen ylides generated in situ from N-benzyl carboxamides. It is shown that this reaction involves cyclopropene intermediates and allows for the facile and expeditious preparation of 3-azabicyclo[3.1.0]hexan-2-one scaffolds.
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Affiliation(s)
- Vladimir Maslivetc
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA.
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9
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Abstract
Since the first discovery of carbocupration of alkynes in the 1970s a tremendous amount of research has been carried out in this field. The exceptionally high selectivities obtained attribute to the great synthetic value of carbocupration reactions. This tutorial review will present the most important features of carbocupration of alkynes and highlight the most relevant reviews. Then a comprehensive review of copper mediated carbometalation of cyclopropenes will follow. The latter method has received much attention over the last decade as it allows the highly selective construction of poly-substituted cyclopropanes which can be transformed into acyclic derivatives bearing one or multiple tertiary or quaternary carbon stereocenters.
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Affiliation(s)
- D S Müller
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, and The Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel.
| | - I Marek
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, and The Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel.
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10
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Edwards A, Rubin M. Efficient one-pot synthesis of 1-arylcycloprop-2-ene-1-carboxamides. Org Biomol Chem 2016; 14:2883-90. [PMID: 26864495 DOI: 10.1039/c6ob00156d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
An expeditious and cost-efficient method for synthesis of 1-arylcycloprop-2-ene-1-carboxamides was developed. This one-pot protocol involving coupling of amines with acyl chlorides, generated upon treatment of cyclopenylcarboxylic acids with oxalyl chloride, is applicable for the preparation of sensitive products with a reactive, unsubstituted strained double bond.
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Affiliation(s)
- Andrew Edwards
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA.
| | - Michael Rubin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA. and Department of Chemistry, North Caucasus State University, 1a Pushkin St., Stavropol 355009, Russian Federation
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11
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Thomas TJ, Merritt BA, Lemma BE, McKoy AM, Nguyen T, Swenson AK, Mills JL, Coleman MG. Cyclopropenation of internal alkynylsilanes and diazoacetates catalyzed by copper(i) N-heterocyclic carbene complexes. Org Biomol Chem 2016; 14:1742-7. [DOI: 10.1039/c5ob02259b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Copper(i) N-heterocyclic carbene (CuNHC) complexes are effective catalysts for the cyclopropenation of internal alkynylsilanes and diazoacetates compounds.
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Affiliation(s)
- Thomas J. Thomas
- School of Chemistry and Materials Science
- Rochester Institute of Technology
- Rochester
- USA
| | - Benjamin A. Merritt
- School of Chemistry and Materials Science
- Rochester Institute of Technology
- Rochester
- USA
| | - Betsegaw E. Lemma
- School of Chemistry and Materials Science
- Rochester Institute of Technology
- Rochester
- USA
| | - Adina M. McKoy
- School of Chemistry and Materials Science
- Rochester Institute of Technology
- Rochester
- USA
| | - Tri Nguyen
- School of Chemistry and Materials Science
- Rochester Institute of Technology
- Rochester
- USA
| | - Andrew K. Swenson
- School of Chemistry and Materials Science
- Rochester Institute of Technology
- Rochester
- USA
| | - Jeffrey L. Mills
- School of Chemistry and Materials Science
- Rochester Institute of Technology
- Rochester
- USA
| | - Michael G. Coleman
- School of Chemistry and Materials Science
- Rochester Institute of Technology
- Rochester
- USA
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12
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Edwards A, Rubin M. Synthesis of 1-arylcycloprop-2-ene carboxylates with non-substituted double bond via a Rh(II)-catalyzed cyclopropenation of trimethylsilylacetylene with coarsely purified aryldiazoacetates. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.120] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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13
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Shah S, White JM, Williams SJ. Total syntheses of cis-cyclopropane fatty acids: dihydromalvalic acid, dihydrosterculic acid, lactobacillic acid, and 9,10-methylenehexadecanoic acid. Org Biomol Chem 2014; 12:9427-38. [DOI: 10.1039/c4ob01863j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Diversity-oriented synthesis as a tool for identifying new modulators of mitosis. Nat Commun 2014; 5:3155. [PMID: 24434687 DOI: 10.1038/ncomms4155] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 12/18/2013] [Indexed: 02/02/2023] Open
Abstract
The synthesis of diverse three-dimensional libraries has become of paramount importance for obtaining better leads for drug discovery. Such libraries are predicted to fare better than traditional compound collections in phenotypic screens and against difficult targets. Herein we report the diversity-oriented synthesis of a compound library using rhodium carbenoid chemistry to access structurally diverse three-dimensional molecules and show that they access biologically relevant areas of chemical space using cheminformatic analysis. High-content screening of this library for antimitotic activity followed by chemical modification identified 'Dosabulin', which causes mitotic arrest and cancer cell death by apoptosis. Its mechanism of action is determined to be microtubule depolymerization, and the compound is shown to not significantly affect vinblastine binding to tubulin; however, experiments suggest binding to a site vicinal or allosteric to Colchicine. This work validates the combination of diversity-oriented synthesis and phenotypic screening as a strategy for the discovery of biologically relevant chemical entities.
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15
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Lin S, Li M, Dong Z, Liang F, Zhang J. Hypervalent iodine(iii)-mediated cyclopropa(e)nation of alkenes/alkynes under mild conditions. Org Biomol Chem 2014; 12:1341-50. [DOI: 10.1039/c3ob42123f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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16
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Didier D, Delaye PO, Simaan M, Island B, Eppe G, Eijsberg H, Kleiner A, Knochel P, Marek I. Modulable and Highly Diastereoselective Carbometalations of Cyclopropenes. Chemistry 2013; 20:1038-48. [DOI: 10.1002/chem.201303569] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Indexed: 11/10/2022]
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17
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Endo K, Nakano T, Fujinami S, Ukaji Y. Chemoselective Carbozincation of Cyclopropene for C-C Bond Formation and Cleavage in a Single Operation. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Delaye PO, Didier D, Marek I. Diastereodivergent Carbometalation/Oxidation/Selective Ring Opening: Formation of All-Carbon Quaternary Stereogenic Centers in Acyclic Systems. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300664] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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19
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Delaye PO, Didier D, Marek I. Diastereodivergent Carbometalation/Oxidation/Selective Ring Opening: Formation of All-Carbon Quaternary Stereogenic Centers in Acyclic Systems. Angew Chem Int Ed Engl 2013; 52:5333-7. [DOI: 10.1002/anie.201300664] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Indexed: 11/07/2022]
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20
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Fisher LA, Smith NJ, Fox JM. Chiral cyclopropenyl ketones: reactive and selective Diels-Alder dienophiles. J Org Chem 2013; 78:3342-8. [PMID: 23438063 DOI: 10.1021/jo302683t] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis and Diels-Alder reactions of cyclopropenyl ketones are described. Cyclopropenyl ketones are highly reactive dienophiles that can engage a range of cyclic dienes and 2,3-dimethylbutadiene. The strategy of using cyclopropenyl ketones to facilitate Diels-Alder reactions is not limited to products that contain three-membered rings, as reductive opening by SmI2 can be used to produce a product that lacks a cyclopropane but retains a quaternary stereogenic center.
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Affiliation(s)
- Laural A Fisher
- Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
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21
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Cui X, Xu X, Wojtas L, Kim MM, Zhang XP. Regioselective synthesis of multisubstituted furans via metalloradical cyclization of alkynes with α-diazocarbonyls: construction of functionalized α-oligofurans. J Am Chem Soc 2012. [PMID: 23205846 DOI: 10.1021/ja309446n] [Citation(s) in RCA: 161] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Co(III)-carbene radicals generated from activation of α-diazocarbonyls by Co(II)-porphyrin complexes have been shown to undergo a new type of tandem radical addition reaction with alkynes that affords five-membered furan structures. The Co(II) complex of 3,5-Di(t)Bu-IbuPhyrin, [Co(P1)], is effective in catalyzing the metalloradical cyclization reaction under neutral and mild conditions. The [Co(P1)]-catalyzed process tolerates a wide range of α-diazocarbonyls and terminal alkynes with varied steric and electronic properties, producing polyfunctionalized furans with complete regioselectivity. The catalytic synthesis features a high degree of functional group tolerance and can be applied iteratively to construct functionalized α-oligofurans.
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Affiliation(s)
- Xin Cui
- Department of Chemistry, University of South Florida, Tampa, Florida 33620-5250, United States
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22
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Chen J, Ni S, Ma S. Tuning of Regioselectivity in Inorganic Iodide-Catalyzed Alkylation of 2-Methoxyfurans via Electronic and Steric Effects. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100337] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
This critical review discusses recent developments in the field of cyclopropene chemistry. Although several excellent reviews that mainly focused on the thermolysis and pyrolysis as well as metal-mediated reactions of cyclopropenes have been published, significant new developments have also been achieved in recent years. This brand new review provides an overview of the progress from 2007 to 2011 on the syntheses and transformations of cyclopropenes as well as their related mechanistic studies (238 references).
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Affiliation(s)
- Zhi-Bin Zhu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, China 200032
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24
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Briones JF, Hansen J, Hardcastle KI, Autschbach J, Davies HML. Highly Enantioselective Rh2(S-DOSP)4-Catalyzed Cyclopropenation of Alkynes with Styryldiazoacetates. J Am Chem Soc 2010; 132:17211-5. [PMID: 21080670 DOI: 10.1021/ja106509b] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John F. Briones
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States, and Department of Chemistry, University at Buffalo, SUNY, Buffalo, New York 14226, United States
| | - Jørn Hansen
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States, and Department of Chemistry, University at Buffalo, SUNY, Buffalo, New York 14226, United States
| | - Kenneth I. Hardcastle
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States, and Department of Chemistry, University at Buffalo, SUNY, Buffalo, New York 14226, United States
| | - Jochen Autschbach
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States, and Department of Chemistry, University at Buffalo, SUNY, Buffalo, New York 14226, United States
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States, and Department of Chemistry, University at Buffalo, SUNY, Buffalo, New York 14226, United States
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25
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Chen J, Ma S. Catalyst-Controlled Ring-Opening Cycloisomerization Reactions of Cyclopropenyl Carboxylates for Highly Regioselective Synthesis of Different 2-Alkoxyfurans. Chem Asian J 2010; 5:2415-21. [DOI: 10.1002/asia.201000324] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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Runyon SP, Brieaddy LE, Mascarella SW, Thomas JB, Navarro HA, Howard JL, Pollard GT, Carroll FI. Analogues of (3R)-7-hydroxy-N-[(1S)-1-{[(3R,4R)-4-(3-hydroxyphenyl)-3,4-dimethyl-1-piperidinyl]methyl}-2-methylpropyl)-1,2,3,4-tetrahydro-3-isoquinolinecarboxamide (JDTic). Synthesis and in vitro and in vivo opioid receptor antagonist activity. J Med Chem 2010; 53:5290-301. [PMID: 20568781 DOI: 10.1021/jm1004978] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of compounds 6, 7a,b, 8a,b, 9a,b, and 10a,b where the amino -NH- group of JDTic (3) was replaced with an aromatic horizontal lineCH-, CH(2), O, S, or SO group was accomplished and used to further characterize the SAR of the compound 3 class of kappa opioid receptor antagonists. All of the compounds showed subnanomolar to low nanomolar K(e) values at the kappa opioid receptor. The most potent compound was 7a, where the amino -NH- group of 3 was replaced by a methylene (-CH(2)-) group. This compound had a K(e) = 0.18 nM and was 37- and 248-fold selective for the kappa relative to the mu and delta opioid receptors, respectively. Similar to compound 3, compound 7a antagonized selective kappa agonist U50,488-induced diuresis after sc administration in rats. In contrast to 3, where kappa antagonist activity lasted for three weeks, compound 7a did not show any kappa antagonist activity after one week.
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Affiliation(s)
- Scott P Runyon
- Organic and Medicinal Chemistry, Research Triangle Institute, Research Triangle Park, North Carolina 27709, USA
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27
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28
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Paih JL, Bray CVL, Dérien S, Dixneuf PH. Ruthenium-Catalyzed Synthesis of Functional Conjugated Dienes via Addition of Two Carbene Units to Alkynes. J Am Chem Soc 2010; 132:7391-7. [DOI: 10.1021/ja101064b] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jacques Le Paih
- Laboratoire Catalyse et Organométalliques, UMR 6226-Sciences Chimiques de Rennes, CNRS-Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - Chloé Vovard-Le Bray
- Laboratoire Catalyse et Organométalliques, UMR 6226-Sciences Chimiques de Rennes, CNRS-Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - Sylvie Dérien
- Laboratoire Catalyse et Organométalliques, UMR 6226-Sciences Chimiques de Rennes, CNRS-Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - Pierre H. Dixneuf
- Laboratoire Catalyse et Organométalliques, UMR 6226-Sciences Chimiques de Rennes, CNRS-Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
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29
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Chen S, Ren J, Wang Z. A highly regioselective tandem 1,3-dipolar cycloaddition of cyclopropene 1,1-diesters and nitrile oxides: synthesis of highly functionalized isoxazoles. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.09.034] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Simaan S, Masarwa A, Zohar E, Stanger A, Bertus P, Marek I. Cyclopropenylcarbinol Derivatives as New Versatile Intermediates in Organic Synthesis: Application to the Formation of Enantiomerically Pure Alkylidenecyclopropane Derivatives. Chemistry 2009; 15:8449-8464. [PMID: 19609999 DOI: 10.1002/chem.200901074] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Samah Simaan
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, and the Lise Meitner-Minerva, Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000 (Israel), Fax: (+972) 4 829 3709
| | - Ahmad Masarwa
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, and the Lise Meitner-Minerva, Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000 (Israel), Fax: (+972) 4 829 3709
| | - Elinor Zohar
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, and the Lise Meitner-Minerva, Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000 (Israel), Fax: (+972) 4 829 3709
| | - Amnon Stanger
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, and the Lise Meitner-Minerva, Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000 (Israel), Fax: (+972) 4 829 3709
| | - Philippe Bertus
- CNRS UMR 6011, Unite de Chimie Organique et Moleculaire (UCO2M), Universite du Maine, Avenue O. Messian, 72085 Le Mans Cedex 9 (France)
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, and the Lise Meitner-Minerva, Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000 (Israel), Fax: (+972) 4 829 3709
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31
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Chiarotto I, Feeney MM, Feroci M, Inesi A. Electrogenerated N-heterocyclic carbene: N-acylation of chiral oxazolidin-2-ones in ionic liquids. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2008.09.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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32
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Fisher LA, Fox JM. Studies on the stability of cycloprop-2-ene carboxylate dianions and reactions with electrophiles. J Org Chem 2008; 73:8474-8. [PMID: 18850746 PMCID: PMC2696164 DOI: 10.1021/jo801683n] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dianions are generated from alkyllithium reagents and cycloprop-2-ene carboxylic acids, and these dianions can be functionalized by electrophiles at the vinylic position. In a previous report, we described that such dianions could be generated and reacted with electrophiles in Et2O or THF. Upon further study, it was found that there were reproducibility issues for those reactions that were carried out in Et2O. Working under the assumption that an impurity may have promoted these reactions, a detailed study was undertaken to determine the effect of variables on the generation, stability, and reactivity of cycloprop-2-ene carboxylate dianions. It has been found that certain additives can have a substantial effect on the chemistry of cycloprop-2-ene carboxylate dianions. In particular, it was determined that amine N-oxide additives have a beneficial effect both on the stability of cycloprop-2-ene carboxylate dianions and on the rates that such dianions undergo alkylation. Conditions for reacting dianions with a broad range of electrophiles are described.
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Affiliation(s)
- Laural A. Fisher
- Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716
| | - Joseph M. Fox
- Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716
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34
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Abramovitch A, Fensterbank L, Malacria M, Marek I. Convergent Preparation of Enantiomerically Pure Polyalkylated Cyclopropane Derivatives. Angew Chem Int Ed Engl 2008; 47:6865-8. [DOI: 10.1002/anie.200802093] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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35
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Abramovitch A, Fensterbank L, Malacria M, Marek I. Convergent Preparation of Enantiomerically Pure Polyalkylated Cyclopropane Derivatives. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Yan N, Liu X, Pallerla MK, Fox JM. Synthesis of stable derivatives of cycloprop-2-ene carboxylic acid. J Org Chem 2008; 73:4283-6. [PMID: 18452335 DOI: 10.1021/jo800042w] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Large-scale syntheses of 3-(cycloprop-2-en-1-oyl)oxazolidinones from acetylene and ethyl diazoacetate are described. Unlike other cyclopropenes that bear a single substitutent at C-3, these compounds are stable to long-term storage. Although the cyclopropene derivatives are unusually stable, they are reactive toward cyclic and acyclic dienes in stereoselective Diels-Alder reactions.
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Affiliation(s)
- Ni Yan
- Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
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37
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Levin A, Marek I. Cyclopropenyllithiums as a new source of 1,1-bismetalated cyclopropyl derivatives. Chem Commun (Camb) 2008:4300-2. [DOI: 10.1039/b807635a] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Yan N, Liu X, Fox JM. Facially Selective and Regioselective Carbometalation of Cyclopropenes by Aryl Grignard Reagents. J Org Chem 2007; 73:563-8. [PMID: 18085796 DOI: 10.1021/jo702176x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ni Yan
- Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Xiaozhong Liu
- Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Joseph M. Fox
- Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
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39
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Marek I, Simaan S, Masarwa A. Enantiomerically enriched cyclopropene derivatives: versatile building blocks in asymmetric synthesis. Angew Chem Int Ed Engl 2007; 46:7364-76. [PMID: 17663496 DOI: 10.1002/anie.200604774] [Citation(s) in RCA: 217] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Enantiomerically enriched cyclopropene derivatives, the smallest possible unsaturated carbocycles, are of great synthetic interest since they serve as versatile reactive building blocks. Their reactivity results from the relief of the ring strain in the small molecule. They can be transformed into a wide variety of complex chiral structures and a special emphasis will be directed towards the preparation of enantiomerically enriched methylene- and alkylidenecyclopropane derivatives. The ready availability of a wide range of these chiral entities now provides an excellent opportunity to discover new and unique transformations that can further enrich mainstream synthetic methodology.
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Affiliation(s)
- Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, Israel.
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40
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Affiliation(s)
- Mahesh K. Pallerla
- Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Joseph M. Fox
- Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
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41
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Chittiboyina AG, Kumar GM, Carvalho PB, Liu Y, Zhou YD, Nagle DG, Avery MA. Total synthesis and absolute configuration of laurenditerpenol: a hypoxia inducible factor-1 activation inhibitor. J Med Chem 2007; 50:6299-302. [PMID: 18004798 DOI: 10.1021/jm7011062] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The absolute stereo structure of the natural product laurenditerpenol (1S, 6R, 7S, 10R, 11R, 14S, 15R) has been accomplished from eight plausible stereoisomers by its first asymmetric total synthesis in a highly convergent and flexible synthetic pathway. Six stereoisomers of laurenditerpenol were synthesized and evaluated for their biological activity.
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42
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Marek I, Simaan S, Masarwa A. Enantiomerenangereicherte Cyclopropene: vielseitige Bausteine in der asymmetrischen Synthese. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604774] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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43
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Rubin M, Rubina M, Gevorgyan V. Transition metal chemistry of cyclopropenes and cyclopropanes. Chem Rev 2007; 107:3117-79. [PMID: 17622181 DOI: 10.1021/cr050988l] [Citation(s) in RCA: 1052] [Impact Index Per Article: 61.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael Rubin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, USA.
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44
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Yang Z, Xie X, Fox JM. Diastereoselective synthesis of methylenecyclopropanes from chiral cyclopropene derivatives. Angew Chem Int Ed Engl 2007; 45:3960-2. [PMID: 16683292 DOI: 10.1002/anie.200600531] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhe Yang
- Department of Chemistry and Biochemistry, University of Delaware, Brown Laboratories, Newark, DE 19716, USA.
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45
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Simaan S, Marek I. Stereodivergent Carbometalation Reactions of Cyclopropenylcarbinol Derivatives. Org Lett 2007; 9:2569-71. [PMID: 17536813 DOI: 10.1021/ol070974x] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The diastereoselective formation of cyclopropylcarbinol from cyclopropenylcarbinol is very sensitive to the nature of the organometallic used for the carbometalation reaction. Both diastereoisomers can be obtained, at will, from the same precursor.
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Affiliation(s)
- Samah Simaan
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32 000, Israel
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46
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Panne P, Fox JM. Rh-Catalyzed Intermolecular Reactions of Alkynes with α-Diazoesters That Possess β-Hydrogens: Ligand-Based Control over Divergent Pathways. J Am Chem Soc 2006; 129:22-3. [PMID: 17199269 DOI: 10.1021/ja0660195] [Citation(s) in RCA: 156] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Patricia Panne
- Brown Laboratories, Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
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47
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Gallou I, Senanayake CH. cis-1-Amino-2-indanol in Drug Design and Applications to Asymmetric Processes. Chem Rev 2006; 106:2843-74. [PMID: 16836302 DOI: 10.1021/cr050970a] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Isabelle Gallou
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, USA
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48
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Yang Z, Xie X, Fox JM. Diastereoselective Synthesis of Methylenecyclopropanes from Chiral Cyclopropene Derivatives. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600531] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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49
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Simaan S, Masarwa A, Bertus P, Marek I. Enantiomerically Pure Cyclopropenylcarbinols as a Source of Chiral Alkylidenecyclopropane Derivatives. Angew Chem Int Ed Engl 2006; 45:3963-5. [PMID: 16625668 DOI: 10.1002/anie.200600556] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Samah Simaan
- Department of Chemistry, Institute of Catalysis Science and Technology, Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel.
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50
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Simaan S, Masarwa A, Bertus P, Marek I. Enantiomerically Pure Cyclopropenylcarbinols as a Source of Chiral Alkylidenecyclopropane Derivatives. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600556] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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