1
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Abstract
The furanocembranoid providencin remains an unconquered bastion, although the synthesis of 17-deoxyprovidencin─lacking a single -OH group─has been accomplished in the past. This paper describes a practical approach to a properly hydroxylated building block via an iridium-catalyzed photosensitized intramolecular [2 + 2] cycloaddition as the key step. While an attempt to convert this compound into providencin via RCAM failed, it might well be elaborated into the natural product by adopting the literature route.
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Affiliation(s)
- Simon M Spohr
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
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2
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Gramani SG, Sriramula RK, Sekar K, Yang EG, Battu P, Kopecky A, Lear MJ. Cis Selective RCM Study to the 14-Membered Cyclic Subunit of Bielschowskysin. J Org Chem 2021; 86:6160-6168. [PMID: 33908786 DOI: 10.1021/acs.joc.0c02984] [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
A concise, (Z)-selective ring-closing metathesis (RCM) route to the 14-membered carbocycle of bielschowskysin is detailed using naturally occurring chiral starting materials. Unproductive RCM substrates were attributed to alkyne chelation of the ruthenium catalyst and steric disadvantages within the cembranoid precursors, which was eventually circumvented by using cyclic diol benzylidene protection involving a C8-quaternary carbinol center.
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Affiliation(s)
- Subramanian G Gramani
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Ravi K Sriramula
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Karthik Sekar
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Eugene G Yang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Praveena Battu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Aïcha Kopecky
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Martin J Lear
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.,School of Chemistry, University of Lincoln, Brayford Pool, Lincoln LN6 7TS, U.K
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3
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Heravi MM, Janati F, Zadsirjan V. Applications of Knoevenagel condensation reaction in the total synthesis of natural products. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02586-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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4
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Bernhard Y, Gilbert J, Bousquet T, Favrelle-Huret A, Zinck P, Pellegrini S, Pelinski L. One-Pot Synthesis of 2,5-Disubstituted Furans through In Situ Formation of Allenes and Enolization Cascade. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yann Bernhard
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Joachim Gilbert
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Till Bousquet
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Audrey Favrelle-Huret
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Philippe Zinck
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Sylvain Pellegrini
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
| | - Lydie Pelinski
- ENSCL, Centrale Lille, Univ. Artois, UMR 8181 UCCSUnité de Catalyse et Chimie du Solide; Univ. Lille; 59000 Lille France
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5
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Xiang J, Zhao X, Li J, Ding Y, Wang C, Wang L, Chen Y. Rapid Construction of the Scaffold of Quorumolide A Enabled by a Tandem ROM/RCM Strategy and a Tandem Oxidative Cyclization Strategy. Org Lett 2019; 21:6485-6487. [PMID: 31365269 DOI: 10.1021/acs.orglett.9b02363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A synthetically challenging framework in the plant-derived cembranoid quorumolide A was established in a seven-step sequence featuring a ring-opening/-closing metathesis cascade reaction to construct the fused butenolide ring and the 14-membered macroring in a single step. The utilization of a tandem oxidative cyclization strategy is the key to build the tetrahydro-2H-pyran moiety.
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Affiliation(s)
- Junhong Xiang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300071 , China
| | - Xiuhe Zhao
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300071 , China
| | - Jiaxin Li
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300071 , China
| | - Yahui Ding
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300071 , China
| | - Chao Wang
- Department of Chemistry , Yale University , New Haven , Connecticut 06520 , United States
| | - Liang Wang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300071 , China
| | - Yue Chen
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research , Nankai University , Tianjin 300071 , China
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6
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Xiang J, Ding Y, Li J, Zhao X, Sun Y, Wang D, Wang L, Chen Y. Ovatodiolides: Scalable Protection‐Free Syntheses, Configuration Determination, and Biological Evaluation against Hepatic Cancer Stem Cells. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Junhong Xiang
- The State Key Laboratory of Medicinal Chemical BiologyCollege of Pharmacy and Tianjin Key Laboratory of Molecular Drug ResearchNankai University Tianjin 300071 China
| | - Yahui Ding
- The State Key Laboratory of Medicinal Chemical BiologyCollege of Pharmacy and Tianjin Key Laboratory of Molecular Drug ResearchNankai University Tianjin 300071 China
| | - Jiaxin Li
- The State Key Laboratory of Medicinal Chemical BiologyCollege of Pharmacy and Tianjin Key Laboratory of Molecular Drug ResearchNankai University Tianjin 300071 China
| | - Xiuhe Zhao
- The State Key Laboratory of Medicinal Chemical BiologyCollege of Pharmacy and Tianjin Key Laboratory of Molecular Drug ResearchNankai University Tianjin 300071 China
| | - Yuanjun Sun
- The State Key Laboratory of Medicinal Chemical BiologyCollege of Pharmacy and Tianjin Key Laboratory of Molecular Drug ResearchNankai University Tianjin 300071 China
| | - Da Wang
- The State Key Laboratory of Medicinal Chemical BiologyCollege of Pharmacy and Tianjin Key Laboratory of Molecular Drug ResearchNankai University Tianjin 300071 China
| | - Liang Wang
- The State Key Laboratory of Medicinal Chemical BiologyCollege of Pharmacy and Tianjin Key Laboratory of Molecular Drug ResearchNankai University Tianjin 300071 China
| | - Yue Chen
- The State Key Laboratory of Medicinal Chemical BiologyCollege of Pharmacy and Tianjin Key Laboratory of Molecular Drug ResearchNankai University Tianjin 300071 China
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7
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Xiang J, Ding Y, Li J, Zhao X, Sun Y, Wang D, Wang L, Chen Y. Ovatodiolides: Scalable Protection-Free Syntheses, Configuration Determination, and Biological Evaluation against Hepatic Cancer Stem Cells. Angew Chem Int Ed Engl 2019; 58:10587-10590. [PMID: 31140684 DOI: 10.1002/anie.201904096] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/09/2019] [Indexed: 01/01/2023]
Abstract
A concise, scalable, six-step (longest linear sequence) synthetic route to ovatodiolide scaffolds was developed for the first time. This protecting-group-free route features tandem ring-opening metathesis/ring-closing metathesis reactions to install the macrocycle-fused butenolide ring and a tandem allylboration/lactonization to build the α-methylene-γ-lactone. Our syntheses have enabled the determination of the hitherto unknown stereochemical configurations of this family of natural products. Preliminary tests of structure-activity relationships were conducted with four natural ovatodiolides and three analogues. Further assays indicated that the synthetic natural product isoovatodiolide can significantly decrease the population of hepatic cancer stem cells and reduce the tumorsphere-forming capability of HepG2 cells.
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Affiliation(s)
- Junhong Xiang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
| | - Yahui Ding
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
| | - Jiaxin Li
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
| | - Xiuhe Zhao
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
| | - Yuanjun Sun
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
| | - Da Wang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
| | - Liang Wang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
| | - Yue Chen
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
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8
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Zheng K, Hong R. Stereoconfining macrocyclizations in the total synthesis of natural products. Nat Prod Rep 2019; 36:1546-1575. [DOI: 10.1039/c8np00094h] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This review covers selected examples of point chirality-forming macrocyclizations in natural product total synthesis in the past three decades.
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Affiliation(s)
- Kuan Zheng
- Key Laboratory of Synthetic Chemistry of Natural Substances
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Ran Hong
- Key Laboratory of Synthetic Chemistry of Natural Substances
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
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9
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Affiliation(s)
- Biswajit Panda
- Department of ChemistryCity College 102/1 Raja Rammohan Sarani Kolkata- 700009 India
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10
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Wang L, Eguchi Y, Chen EYX. Streamlined Synthesis of Biomonomers for Bioresourced Materials: Bisfuran Diacids, Diols, and Diamines via Common Bisfuran Dibromide Intermediates. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Lu Wang
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Yuji Eguchi
- Corporate R&D Center, Sekisui Chemical Co., Ltd., Tskuba, Ibaraki 300-4292, Japan
| | - Eugene Y.-X. Chen
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
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11
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McAulay K, Clark JS. Total Synthesis of 7-epi
-Pukalide and 7-Acetylsinumaximol B. Chemistry 2017; 23:9761-9765. [DOI: 10.1002/chem.201702591] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Kirsten McAulay
- WestCHEM; School of Chemistry, Joseph Black Building, University of Glasgow; University Avenue Glasgow G12 8QQ UK
| | - J. Stephen Clark
- WestCHEM; School of Chemistry, Joseph Black Building, University of Glasgow; University Avenue Glasgow G12 8QQ UK
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12
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Gil A, Albericio F, Álvarez M. Role of the Nozaki–Hiyama–Takai–Kishi Reaction in the Synthesis of Natural Products. Chem Rev 2017. [DOI: 10.1021/acs.chemrev.7b00144] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Alejandro Gil
- ChemBio Lab, Barcelona Science Park, Baldiri Reixac 10, E-08028 Barcelona, Spain
- CIBER-BBN,
Networking
Centre on Bioengineering, Biomaterials and Nanomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Fernando Albericio
- ChemBio Lab, Barcelona Science Park, Baldiri Reixac 10, E-08028 Barcelona, Spain
- CIBER-BBN,
Networking
Centre on Bioengineering, Biomaterials and Nanomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028 Barcelona, Spain
- University of Kwa-Zulu-Natal, 4001, Durban, South Africa
| | - Mercedes Álvarez
- ChemBio Lab, Barcelona Science Park, Baldiri Reixac 10, E-08028 Barcelona, Spain
- CIBER-BBN,
Networking
Centre on Bioengineering, Biomaterials and Nanomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028 Barcelona, Spain
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13
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Han JC, Li CC. Ruthenium-Catalyzed Metathesis Cascade Reactions in Natural Products Synthesis. CHEM REC 2016; 17:499-517. [PMID: 27775863 DOI: 10.1002/tcr.201600110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/12/2016] [Indexed: 12/20/2022]
Abstract
In this account, we provide a brief summary of recent developments in ruthenium-catalyzed metathesis cascade reactions towards the total synthesis of natural products. We also highlight recent progress from our own laboratory regarding the synthesis of securinega alkaloids and humulanolides, which has resulted in the development of novel ruthenium-catalyzed metathesis cascade reactions. Inspired and guided by the pioneering and elegant research conducted in this area, we developed a regio-controlled relay dienyne metathesis cascade reaction and a cyclobutene-promoted RCM/ROM/RCM cascade reaction for the synthesis of securinega alkaloids and humulanolides, respectively.
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Affiliation(s)
- Jing-Chun Han
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, China
| | - Chuang-Chuang Li
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, China
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14
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Morcillo SP, Leboeuf D, Bour C, Gandon V. Calcium-Catalyzed Synthesis of Polysubstituted 2-Alkenylfurans from β-Keto Esters Tethered to Propargyl Alcohols. Chemistry 2016; 22:16974-16978. [DOI: 10.1002/chem.201603929] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Sara P. Morcillo
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud; Université Paris-Saclay; bâtiment 420 91405 Orsay cedex France
| | - David Leboeuf
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud; Université Paris-Saclay; bâtiment 420 91405 Orsay cedex France
| | - Christophe Bour
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud; Université Paris-Saclay; bâtiment 420 91405 Orsay cedex France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud; Université Paris-Saclay; bâtiment 420 91405 Orsay cedex France
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15
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Kotha S, Meshram M, Khedkar P, Banerjee S, Deodhar D. Recent applications of ring-rearrangement metathesis in organic synthesis. Beilstein J Org Chem 2015; 11:1833-64. [PMID: 26664603 PMCID: PMC4660990 DOI: 10.3762/bjoc.11.199] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 09/17/2015] [Indexed: 11/23/2022] Open
Abstract
Ring-rearrangement metathesis (RRM) involves multiple metathesis processes such as ring-opening metathesis (ROM)/ring-closing metathesis (RCM) in a one-pot operation to generate complex targets. RRM delivers complex frameworks that are difficult to assemble by conventional methods. The noteworthy point about this type of protocol is multi-bond formation and it is an atom economic process. In this review, we have covered literature that appeared during the last seven years (2008–2014).
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076, India.
| | - Milind Meshram
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076, India.
| | - Priti Khedkar
- Department of Chemistry, Guru Nanak Khalsa College of Arts, Science & Commerce, Matunga, Mumbai-400 019, India
| | - Shaibal Banerjee
- Department of Applied Chemistry, Defence Institute of Advanced Technology (DU), Girinagar, Pune-411025, Pune, India
| | - Deepak Deodhar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400 076, India.
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16
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Sosa Carrizo ED, Fernández I, Martín SE. Computational Study on the C–Heteroatom Bond Formation via Stille Cross-Coupling Reaction: Differences between Organoheterostannanes Me3SnAsPh2 vs Me3SnPPh2. Organometallics 2014. [DOI: 10.1021/om501027s] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- E. Daiann Sosa Carrizo
- Departamento
de Química Orgánica, Facultad de Ciencias Químicas, INFIQC (CONICET−Universidad Nacional de Córdoba), Medina Allende y Haya de la Torre, X5000HUA, Córdoba, Argentina
| | - Israel Fernández
- Departamento
Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense Madrid, 28040, Madrid, Spain
| | - Sandra E. Martín
- Departamento
de Química Orgánica, Facultad de Ciencias Químicas, INFIQC (CONICET−Universidad Nacional de Córdoba), Medina Allende y Haya de la Torre, X5000HUA, Córdoba, Argentina
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17
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Vasamsetty L, Khan FA, Mehta G. A model approach towards the polycyclic framework present in cembranoid natural products dissectolide A, plumarellide and mandapamate. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.141] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Han JC, Li F, Li CC. Collective synthesis of humulanolides using a metathesis cascade reaction. J Am Chem Soc 2014; 136:13610-3. [PMID: 25228021 DOI: 10.1021/ja5084927] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new method has been developed for the concise and asymmetric synthesis of seven humulanolides in 5-7 steps without the need for protecting groups. Notably, the challenging 11-membered ring and bridged butenolide moieties in asteriscunolide D and 6,7,9,10-tetrahydroasteriscunolide were introduced in one step using a ring-opening/ring-closing metathesis cascade reaction. Asteriscunolide D was used as a versatile synthetic precursor to prepare asteriscunolides A-C via a photoinduced isomerization reaction, asteriscanolide via a unique transannular Michael reaction, and 6,7,9,10-tetradehydroasteriscanolide via a transannular Morita-Baylis-Hillman-type reaction. The unique bicyclo[6.3.0]undecane core was introduced diastereoselectively.
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Affiliation(s)
- Jing-chun Han
- Department of Chemistry, South University of Science and Technology of China , Shenzhen 518055, China
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19
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Water as an additive for selective synthesis of saturated 1,4-diketones and tetrasubstituted furans directly from 1,4-enediones. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.077] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Kamimura A, So M, Ishikawa S, Uno H. Pd-Catalyzed Tandem sp2–sp3 Coupling Reactions of Chiral Stannolanes: An Efficient Preparation of Optically Active Tetrahydrobenz[f]isoindoles. Org Lett 2013; 15:1402-5. [DOI: 10.1021/ol4003948] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akio Kamimura
- Department of Applied Molecular Bioscience, Yamaguchi University, Ube, 755-8611, Japan, and Department of Chemistry, Graduate School of Science and Engineering, Ehime University, Matsuyama, 790-8577, Japan
| | - Masahiro So
- Department of Applied Molecular Bioscience, Yamaguchi University, Ube, 755-8611, Japan, and Department of Chemistry, Graduate School of Science and Engineering, Ehime University, Matsuyama, 790-8577, Japan
| | - Shingo Ishikawa
- Department of Applied Molecular Bioscience, Yamaguchi University, Ube, 755-8611, Japan, and Department of Chemistry, Graduate School of Science and Engineering, Ehime University, Matsuyama, 790-8577, Japan
| | - Hidemitsu Uno
- Department of Applied Molecular Bioscience, Yamaguchi University, Ube, 755-8611, Japan, and Department of Chemistry, Graduate School of Science and Engineering, Ehime University, Matsuyama, 790-8577, Japan
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21
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2010. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.02.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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22
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Donohoe TJ, Pullin RDC. Natural product synthesis as a challenging test of newly developed methodology. Chem Commun (Camb) 2012; 48:11924-38. [DOI: 10.1039/c2cc36040c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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23
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Abstract
Covering: 2010. Previous review: Nat. Prod. Rep., 2011, 28, 196. This review covers the literature published in 2010 for marine natural products, with 895 citations (590 for the period January to December 2010) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1003 for 2010), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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24
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Fattorusso E, Luciano P, Putra MY, Taglialatela-Scafati O, Ianaro A, Panza E, Bavestrello G, Cerrano C. Chloroscabrolides, chlorinated norcembranoids from the Indonesian soft coral Sinularia sp. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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25
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Goli M, He A, Falck JR. Pd-catalyzed cross-coupling of α-(acyloxy)-tri-n-butylstannanes with alkenyl, aryl, and heteroaryl electrophiles. Org Lett 2010; 13:344-6. [PMID: 21141984 DOI: 10.1021/ol102863u] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Racemic and scalemic α-(acyloxy)-tri-n-butylstannanes undergo Pd-catalyzed cross-couplings with alkenyl/aryl/heteroaryl iodides, bromides, and triflates in moderate to good yields in THF at 45 °C. Simple aryl iodides and unprotected aza-arenes, two classes of electrophiles that typically react sluggishly, are also good substrates. Cross-couplings proceed with retention of configuration at the alkenyl and stannyl-substituted stereocenters.
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Affiliation(s)
- Mohan Goli
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
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Yang Z, Li Y, Pattenden G. Synthesis of E-deoxypukalide, and its biomimetic conversion into deoxypseudopterolide by photochemical ring contraction involving a 1,3-allylic shift. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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