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Dong K, Gurung R, Xu X, Doyle MP. Enantioselective Catalytic Cyclopropanation-Rearrangement Approach to Chiral Spiroketals. Org Lett 2021; 23:3955-3959. [PMID: 33955755 DOI: 10.1021/acs.orglett.1c01113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly enantioselective synthesis of chiral heterobicyclic spiroketals is reported via a "one-pot" cyclopropanation-rearrangement (CP-RA) cascade reaction that is sequentially catalyzed by a chiral Rh(II) catalyst and tetrabutylammonium fluoride (TBAF). Exocyclic vinyl substrates form spirocyclopropanes with tert-butyldimethylsilyl-protected enoldiazoacetates in excellent yields and with excellent enantioselectivities when catalyzed by chiral dirhodium(II) carboxylates, and following desilylation with simultaneous rearrangement in the presence of TBAF, they give (S)-spiroketals in high yields with excellent chirality retention (>95% ee).
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Affiliation(s)
- Kuioyng Dong
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Raj Gurung
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Xinfang Xu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Michael P Doyle
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
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2
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Singla P, Salunke DB. Recent advances in steroid amino acid conjugates: Old scaffolds with new dimensions. Eur J Med Chem 2020; 187:111909. [DOI: 10.1016/j.ejmech.2019.111909] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 11/20/2019] [Accepted: 11/22/2019] [Indexed: 12/13/2022]
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3
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Yang I, Lee J, Lee J, Hahn D, Chin J, Won DH, Ko J, Choi H, Hong A, Nam SJ, Kang H. Scalalactams A⁻D, Scalarane Sesterterpenes with a γ-Lactam Moiety from a Korean Spongia Sp. Marine Sponge. Molecules 2018; 23:molecules23123187. [PMID: 30513974 PMCID: PMC6321518 DOI: 10.3390/molecules23123187] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/30/2018] [Accepted: 11/30/2018] [Indexed: 11/23/2022] Open
Abstract
Intensive study on the chemical components of a Korean marine sponge, Spongia sp., has led to the isolation of four new scalarane sesterterpenes, scalalactams A–D (1–4). Their chemical structures were elucidated from the analysis of spectroscopic data including 1D-and 2D-NMR as well as MS data. Scalalactams A–D (1–4) possess a scalarane carbon skeleton with a rare structural feature of a γ-lactam moiety within the molecules. Scalalactams A and B (1 and 2) have an extended isopropanyl chain at the lactam ring, and scalalactams C and D (3 and 4) possess a phenethyl group at the lactam ring moiety. Scalalactams A–D (1–4) did not show FXR antagonistic activity nor cytotoxicity up to 100 μM.
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Affiliation(s)
- Inho Yang
- Department of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean University, Busan 49112, Korea.
| | - Jusung Lee
- The Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Science, Seoul National University, NS-80, Seoul 08826, Korea.
| | - Jihye Lee
- The Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Science, Seoul National University, NS-80, Seoul 08826, Korea.
| | - Dongyup Hahn
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea.
- Institute of Agricultural Science & Technology, Kyungpook National University, Daegu 41566, Korea.
| | - Jungwook Chin
- New Drug Development Center, Daegu-Gyeongbuk Medicinal Innovation Foundation, Daegu 41061, Korea.
| | - Dong Hwan Won
- The Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Science, Seoul National University, NS-80, Seoul 08826, Korea.
| | - Jaeyoung Ko
- Basic Research & Innovation Division, Amorepacific R&D Unit, Yongin 17074, Korea.
| | - Hyukjae Choi
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Korea.
| | - Ahreum Hong
- Graduate School of Industrial Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Korea.
| | - Sang-Jip Nam
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea.
| | - Heonjoong Kang
- The Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Science, Seoul National University, NS-80, Seoul 08826, Korea.
- Research Institute of Oceanography, Seoul National University, NS-80, Seoul 08826, Korea.
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4
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Semina E, Colpaert F, Van Hecke K, De Kimpe N, Mangelinckx S. Asymmetric Synthesis of δ-Chloro-β-amino-N-sulfinyl Imidates as Versatile Chiral Building Blocks for the Synthesis of 2,3-Disubstituted Piperidines. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500466] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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5
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Borah P, Borah JM, Chowdhury P. Microwave (MW) irradiated Ugi four-component reaction (Ugi-4CR): Expedited synthesis of steroid-amino acid conjugates--A novel class of hybrid compounds. Steroids 2015; 98:49-57. [PMID: 25701096 DOI: 10.1016/j.steroids.2015.02.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 01/20/2015] [Accepted: 02/09/2015] [Indexed: 10/24/2022]
Abstract
Microwave (MW) assisted chemical reactions are currently gaining considerable importance in organic synthesis to contribute in green technology. Considering the importance of peptidomimetic steroid-amino acid conjugates - a novel class of hybrid compounds having diverse biological properties, we report here synthesis of these compounds of alanine and valine methyl esters with seco-steroids (A, B and D ring cleavage) in expedited way by MW promoted Ugi-four-component reaction (Ugi-4CR).
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Affiliation(s)
- Preetismita Borah
- Natural Products Chemistry Division, CSIR-North East Institute of Science & Technology, Jorhat 785 006, Assam, India
| | - Juri Moni Borah
- Natural Products Chemistry Division, CSIR-North East Institute of Science & Technology, Jorhat 785 006, Assam, India
| | - Pritish Chowdhury
- Natural Products Chemistry Division, CSIR-North East Institute of Science & Technology, Jorhat 785 006, Assam, India.
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7
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Rivera DG, Vasco AV, Echemendía R, Concepción O, Pérez CS, Gavín JA, Wessjohann LA. A Multicomponent Conjugation Strategy to UniqueN-Steroidal Peptides: First Evidence of the Steroidal Nucleus as a β-Turn Inducer in Acyclic Peptides. Chemistry 2014; 20:13150-61. [DOI: 10.1002/chem.201403773] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Indexed: 01/14/2023]
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8
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Dzyurkevich MS, Timofeeva KN, Faizullin DA, Zuev YF, Stoikov II, Plemenkov VV. Amphiphilic adducts of myrcene and N-substituted maleimides as potential drug delivery agents. MENDELEEV COMMUNICATIONS 2014. [DOI: 10.1016/j.mencom.2014.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Echemendía R, Concepción O, Morales FE, Paixão MW, Rivera DG. The CuI-catalyzed alkyne–azide cycloaddition as direct conjugation/cyclization method of peptides to steroids. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.10.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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10
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Rivera DG, León F, Concepción O, Morales FE, Wessjohann LA. A multiple multicomponent approach to chimeric peptide-peptoid podands. Chemistry 2013; 19:6417-28. [PMID: 23512744 DOI: 10.1002/chem.201201591] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Revised: 01/31/2013] [Indexed: 11/08/2022]
Abstract
The success of multi-armed, peptide-based receptors in supramolecular chemistry traditionally is not only based on the sequence but equally on an appropriate positioning of various peptidic chains to create a multivalent array of binding elements. As a faster, more versatile and alternative access toward (pseudo)peptidic receptors, a new approach based on multiple Ugi four-component reactions (Ugi-4CR) is proposed as a means of simultaneously incorporating several binding and catalytic elements into organizing scaffolds. By employing α-amino acids either as the amino or acid components of the Ugi-4CRs, this multiple multicomponent process allows for the one-pot assembly of podands bearing chimeric peptide-peptoid chains as appended arms. Tripodal, bowl-shaped, and concave polyfunctional skeletons are employed as topologically varied platforms for positioning the multiple peptidic chains formed by Ugi-4CRs. In a similar approach, steroidal building blocks with several axially-oriented isocyano groups are synthesized and utilized to align the chimeric chains with conformational constrains, thus providing an alternative to the classical peptido-steroidal receptors. The branched and hybrid peptide-peptoid appendages allow new possibilities for both rational design and combinatorial production of synthetic receptors. The concept is also expandable to other multicomponent reactions.
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Affiliation(s)
- Daniel G Rivera
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle/Saale, Germany
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11
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Kueh JTB, Choi KW, Williams GM, Moehle K, Bacsa B, Robinson JA, Brimble MA. Synthesis of a 6,6-Spiroketal Amino Acid and Its Incorporation into a Peptide Turn Sequence Using Solid-Phase Peptide Synthesis. Chemistry 2013; 19:3807-11. [DOI: 10.1002/chem.201204546] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Indexed: 11/10/2022]
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12
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Pettit GR, Mendonça RF, Knight JC, Pettit RK. The cephalostatins. 21. Synthesis of bis-steroidal pyrazine rhamnosides (1). JOURNAL OF NATURAL PRODUCTS 2011; 74:1922-30. [PMID: 21899266 PMCID: PMC3251514 DOI: 10.1021/np200411p] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The synthesis of bis-steroidal pyrazines derived from 3-oxo-11,21-dihydroxypregna-4,17(20)-diene (4) and glycosylation of a D-ring side chain with α-L-rhamnose have been summarized. Rearrangement of steroidal pyrazine 10 to 14 was found to occur with boron triflouride etherate. Glycosylation of pyrazine 10 using 2,3,4-tri-O-acetyl-α-L-rhamnose iodide led to 1,2-orthoester-α-L-rhamnose pyrazine 17b. By use of a persilylated α-L-rhamnose iodide as donor, formation of the orthoester was avoided. Bis-steroidal pyrazine 10 and rhamnosides 17b and 21c were found to significantly inhibit cancer cell growth in a murine and human cancer cell line panel. Pyrazine 9 inhibited growth of the nosocomial pathogen Enterococcus faecalis.
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Affiliation(s)
- George R. Pettit
- Department of Chemistry and Biochemistry, Arizona State University, PO Box 871604, Tempe, Arizona 85287-1604
| | - Ricardo F. Mendonça
- Department of Chemistry and Biochemistry, Arizona State University, PO Box 871604, Tempe, Arizona 85287-1604
| | - John C. Knight
- Department of Chemistry and Biochemistry, Arizona State University, PO Box 871604, Tempe, Arizona 85287-1604
| | - Robin K. Pettit
- Department of Chemistry and Biochemistry, Arizona State University, PO Box 871604, Tempe, Arizona 85287-1604
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13
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Mishra JK, Wipf P, Sinha SC. Studies toward a library of tetrahydrofurans: click and MCR products of mono- and bis-tetrahydrofurans. ACTA ACUST UNITED AC 2010; 12:609-12. [PMID: 20614864 DOI: 10.1021/cc1000709] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jitendra K Mishra
- Department of Chemistry and Center for Chemical Methodologies & Library Development, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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Paley RS, Laupheimer MC, Erskine NAK, Rablen PR, Pike RD, Jones JS. Diastereoselective Spiroketalization: Stereocontrol Using An Iron(0) Tricarbonyl Diene Complex. Org Lett 2010; 13:58-61. [DOI: 10.1021/ol102472g] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Robert S. Paley
- Swarthmore College, Department of Chemistry and Biochemistry, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States, and College of William & Mary, Department of Chemistry, P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - Madeleine C. Laupheimer
- Swarthmore College, Department of Chemistry and Biochemistry, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States, and College of William & Mary, Department of Chemistry, P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - Nathaniel A. K. Erskine
- Swarthmore College, Department of Chemistry and Biochemistry, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States, and College of William & Mary, Department of Chemistry, P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - Paul R. Rablen
- Swarthmore College, Department of Chemistry and Biochemistry, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States, and College of William & Mary, Department of Chemistry, P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - Robert D. Pike
- Swarthmore College, Department of Chemistry and Biochemistry, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States, and College of William & Mary, Department of Chemistry, P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - James S. Jones
- Swarthmore College, Department of Chemistry and Biochemistry, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States, and College of William & Mary, Department of Chemistry, P.O. Box 8795, Williamsburg, Virginia 23187, United States
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15
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Wipf P, Xiao J, Stephenson CRJ. Peptide-Like Molecules (PLMs): A Journey from Peptide Bond Isosteres to Gramicidin S Mimetics and Mitochondrial Targeting Agents. Chimia (Aarau) 2009; 63:764-775. [PMID: 20725595 PMCID: PMC2922051 DOI: 10.2533/chimia.2009.764] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Peptides are natural ligands and substrates for receptors and enzymes and exhibit broad physiological effects. However, their use as therapeutic agents often suffers from poor bioavailability and insufficient membrane permeability. The success of peptide mimicry hinges on the ability of bioisosteres, in particular peptide bond replacements, to adopt suitable secondary structures relevant to peptide strands and position functional groups in equivalent space. This perspective highlights past and ongoing studies in our group that involve new methods development as well as specific synthetic library preparations and applications in chemical biology, with the goal to enhance the use of alkene and cyclopropane peptide bond isosteres.
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Affiliation(s)
- Peter Wipf
- Correspondence: Prof. Dr. P. Wipf, University of Pittsburgh, Department of Chemistry, Center for Chemical Methodologies & Library Development, Pittsburgh, PA 15260, Tel.: +1 412 624 8606, Fax: +1 412 624 0787,
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16
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Coro J, RodrÃguez H, Rivera DG, Suárez M, Molero D, Herranz MÃ, MartÃnez-Ãlvarez R, Filippone S, MartÃn N. Functional Chimeras: New BingelâHirsch-Type SteroidâFullerene Hybrids. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900583] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Castaldi MP, Troast DM, Porco JA. Stereoselective synthesis of spirocyclic oxindoles via Prins cyclizations. Org Lett 2009; 11:3362-5. [PMID: 19719184 PMCID: PMC2739092 DOI: 10.1021/ol901201k] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of spirocyclic oxindole pyran and oxepene frameworks using highly stereoselective Prins cyclizations of homoallylic and bis-homoallylic alcohols and isatin ketals is described.
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Affiliation(s)
- M. Paola Castaldi
- Department of Chemistry and Center for Chemical Methodology and Library, Development (CMLD-BU), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215
| | - Dawn M. Troast
- Department of Chemistry and Center for Chemical Methodology and Library, Development (CMLD-BU), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215
| | - John A. Porco
- Department of Chemistry and Center for Chemical Methodology and Library, Development (CMLD-BU), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215
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