1
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Abstract
The total synthesis of geldanamycin, a well-known polyketide that exhibited potent anticancer activity by inhibiting Hsp90, was finished in 26 long linear steps with 2.65% overall yield. High convergency of the synthesis was achieved by the disconnection between C12 and C13 that gives C5-C12 and C13-C21 fragments as major building blocks. The use of an alkynyl ketone as the precursor of the C5-C12 fragment enabled a reagent-controlled establishment of C7 chirality and a highly flexible substituent exchange at C8, making the synthetic route suitable for deep-seated structural modifications on geldanamycin.
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Affiliation(s)
- Zhi Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China
| | - Yunfeng Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China
| | - Rentao Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China
| | - Xiaoming Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China
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2
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Hasenbeck M, Ahles S, Averdunk A, Becker J, Gellrich U. Die Bildung nukleophiler Allylborane aus molekularem Wasserstoff und Allenen katalysiert durch ein Pyridonatboran, das die Reaktivität eines frustrierten Lewis‐Paares zeigt. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011790] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Max Hasenbeck
- Institut für Organische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
| | - Sebastian Ahles
- Institut für Organische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
| | - Arthur Averdunk
- Institut für Organische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
| | - Jonathan Becker
- Institut für Anorganische und Analytische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
| | - Urs Gellrich
- Institut für Organische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
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3
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Hasenbeck M, Ahles S, Averdunk A, Becker J, Gellrich U. Formation of Nucleophilic Allylboranes from Molecular Hydrogen and Allenes Catalyzed by a Pyridonate Borane that Displays Frustrated Lewis Pair Reactivity. Angew Chem Int Ed Engl 2020; 59:23885-23891. [PMID: 32926511 PMCID: PMC7814673 DOI: 10.1002/anie.202011790] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Indexed: 11/05/2022]
Abstract
Here we report the in situ generation of nucleophilic allylboranes from H2 and allenes mediated by a pyridonate borane that displays frustrated‐Lewis‐pair reactivity. Experimental and computational mechanistic investigations reveal that upon H2 activation, the covalently bound pyridonate substituent becomes a datively bound pyridone ligand. Dissociation of the formed pyridone borane complex liberates Piers borane and enables a hydroboration of the allene. The allylboranes generated in this way are reactive towards nitriles. A catalytic protocol for the formation of allylboranes from H2 and allenes and the allylation of nitriles has been devised. This catalytic reaction is a conceptually new way to use molecular H2 in organic synthesis.
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Affiliation(s)
- Max Hasenbeck
- Institut für Organische Chemie, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
| | - Sebastian Ahles
- Institut für Organische Chemie, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
| | - Arthur Averdunk
- Institut für Organische Chemie, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
| | - Jonathan Becker
- Institut für Anorganische und Analytische Chemie, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
| | - Urs Gellrich
- Institut für Organische Chemie, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, 35392, Gießen, Germany
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4
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Schäfers F, Quach L, Schwarz JL, Saladrigas M, Daniliuc CG, Glorius F. Direct Access to Monoprotected Homoallylic 1,2-Diols via Dual Chromium/Photoredox Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03697] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Felix Schäfers
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Linda Quach
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - J. Luca Schwarz
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Mar Saladrigas
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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5
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Li Y, Hao M, Xia M, Sun N, Zhang CL, Zhu WQ. Synthesis of 3-trifluoromethylated 1,3-butadienes via a Pd(0)-catalyzed fluorinated Heck reaction. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00093k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
1,3-Butadienes play a key role in modern synthetic chemistry and biochemistry because they are well-known precursors for the synthesis of retinoids.
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Affiliation(s)
- Yang Li
- School of Environmental and Chemical Engineering
- Xi'an Polytechnic University
- Xi'an
- China
| | - Meng Hao
- School of Environmental and Chemical Engineering
- Xi'an Polytechnic University
- Xi'an
- China
| | - Ming Xia
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- China
| | - Ning Sun
- School of Environmental and Chemical Engineering
- Xi'an Polytechnic University
- Xi'an
- China
| | - Cai-Lin Zhang
- School of Environmental and Chemical Engineering
- Xi'an Polytechnic University
- Xi'an
- China
| | - Wen-Qing Zhu
- School of Environmental and Chemical Engineering
- Xi'an Polytechnic University
- Xi'an
- China
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6
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Total synthesis based modification of benzoquinone ansamycin antibiotics: C8 diversification of C5-C15 fragments. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan, India
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8
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Affiliation(s)
- Daniel W. Terwilliger
- Department
of Chemistry, Ludwig-Maximilians University Munich, Butenandtstraße
5-13, 81377 Munich, Germany
| | - Dirk Trauner
- Department
of Chemistry, Ludwig-Maximilians University Munich, Butenandtstraße
5-13, 81377 Munich, Germany
- Department
of Chemistry, New York University, 100 Washington Square East, Room
712, New York, 10003, United States
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9
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Li C, Li WH, Dong L. Efficient synthesis of N-butadiene substituted oxindole derivatives. Org Chem Front 2018. [DOI: 10.1039/c8qo00930a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel rhodium(iii)-catalyzed amide carbonyl group directed alkenylation reaction between oxindoles and alkenes has been reported, which provides an efficient method for the synthesis of valuable and versatile functionalized N-(2E,4Z)-butadiene substituted oxindole derivatives.
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Affiliation(s)
- Chao Li
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Wei-Huan Li
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Lin Dong
- Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
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10
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Geldanamycin-inspired compounds induce direct trans-differentiation of human mesenchymal stem cells to neurons. Eur J Med Chem 2017; 135:110-116. [DOI: 10.1016/j.ejmech.2017.03.082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/16/2017] [Accepted: 03/31/2017] [Indexed: 01/01/2023]
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11
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Zhao Q, Tognetti V, Joubert L, Besset T, Pannecoucke X, Bouillon JP, Poisson T. Palladium-Catalyzed Synthesis of 3-Trifluoromethyl-Substituted 1,3-Butadienes by Means of Directed C-H Bond Functionalization. Org Lett 2017; 19:2106-2109. [PMID: 28378584 DOI: 10.1021/acs.orglett.7b00704] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A palladium-catalyzed C-H bond functionalization of acrylamides was developed to build up stereoselectively trifluoromethylated 1,3-butadienes. Using a tertiary amide as a directing group, olefins were selectively functionalized with 2-bromo-3,3,3-trifluoropropene to access these important fluorinated compounds. The methodology was extended to the construction of pentafluoroethyl-substituted 1,3-dienes. Mechanistic studies supported by density functional theory calculations suggested a redox neutral mechanism for this transformation.
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Affiliation(s)
- Qun Zhao
- Normandie Université, INSA Rouen , UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Vincent Tognetti
- Normandie Université, INSA Rouen , UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Laurent Joubert
- Normandie Université, INSA Rouen , UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Tatiana Besset
- Normandie Université, INSA Rouen , UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Xavier Pannecoucke
- Normandie Université, INSA Rouen , UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Jean-Philippe Bouillon
- Normandie Université, INSA Rouen , UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Thomas Poisson
- Normandie Université, INSA Rouen , UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
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12
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Zhang Z, Xue N, Bian C, Yan R, Jin L, Chen X, Yu X. C15-methoxyphenylated 18-deoxy-herbimycin A analogues, their in vitro anticancer activity and heat shock protein 90 binding affinity. Bioorg Med Chem Lett 2016; 26:4287-91. [PMID: 27476419 DOI: 10.1016/j.bmcl.2016.07.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Revised: 07/11/2016] [Accepted: 07/19/2016] [Indexed: 11/30/2022]
Abstract
Benzoquinone ansamycins are important leads for the discovery of novel inhibitors of heat shock protein 90 (Hsp90), a promising target of cancer chemotherapeutics. Intrinsic hepatotoxicity caused by the benzoquinone moiety appeared to be a serious limitation to the development of these compounds. To solve this problem by rational structure optimization, a short series of C18-deoxy analogues of herbimycin A were designed based on putative interactions between the compound and the protein. Chemical synthesis of the target molecules were attempted by following the established synthetic route to the natural product, but resulted in the isolation of four serendipitous C15 phenylated final products. In vitro antiproliferative activity and Hsp90 binding affinity of the compounds were determined, suggesting the C18-oxygen of herbimycin A is removable and bulky lipophilic groups can be accommodated at C15 without loss of activity.
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Affiliation(s)
- Zhi Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China
| | - Nina Xue
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China
| | - Chuancai Bian
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China
| | - Rui Yan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China
| | - Longlong Jin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China
| | - Xiaoguang Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China.
| | - Xiaoming Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Xiannongtan Street, Beijing 100050, China.
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13
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Micalizio GC, Hale SB. Reaction design, discovery, and development as a foundation to function-oriented synthesis. Acc Chem Res 2015; 48:663-73. [PMID: 25668752 DOI: 10.1021/ar500408e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Convergent C-C bond-forming reactions define the fabric of organic synthesis and, when applied in complex molecule synthesis, can have a profound impact on efficiency by decreasing the longest linear sequence of transformations required to convert simple starting materials to complex targets. Despite their well-appreciated strategic significance, campaigns in natural product synthesis typically embrace only a small suite of reactivity to achieve such bond construction (i.e., nucleophilic addition to polarized π-bonds, nucleophilic substitution, cycloaddition, and metal-catalyzed "cross-coupling"), therefore limiting the sites at which convergent coupling chemistry can be strategically employed. In our opinion, it is far too often that triumphs in the field are defined by chemical sequences that do not address the challenges associated with discovery, development, and production of natural product-inspired agents. We speculated that advancing an area of chemical reactivity not represented in the few well-established strategies for convergent C-C bond formation may lead to powerful new retrosynthetic relationships that could simplify approaches to the syntheses of a variety of different classes of natural products. Our studies ultimately embraced the pursuit of strategies to control the course of metallacycle-mediated "cross-coupling" between substrates containing sites of simple π-unsaturation (ubiquitous functionality in organic chemistry including alkenes, alkynes, allenes, aldehydes, and imines, among others). In just eight years since our initial publication in this area, we have defined over 20 stereoselective intermolecular C-C bond-forming reactions that provide access to structural motifs of relevance for the synthesis of polyketides, fatty acids, alkaloids, and terpenes, while doing so in a direct and stereoselective fashion. These achievements continue to serve as the foundation of my group's activity in natural product and function-oriented synthesis, where our achievements in reaction development are challenged in the context of complex targets. Among our early efforts, we achieved the most concise synthesis of a benzoquinone ansamycin ever described (macbecin I), and moved beyond this achievement to explore the role of our chemistry in function-oriented synthesis targeting the discovery of natural product-inspired Hsp90 inhibitors. These later efforts have led to the discovery of a uniquely selective benzoquinone ansamycin-inspired Hsp90 inhibitor that lacks the problematic quinone present in the natural series. This achievement was made possible by a concise chemical synthesis pathway that had at its core the application of metallacycle-mediated cross-coupling chemistry.
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Affiliation(s)
- Glenn C. Micalizio
- Department of Chemistry,
Burke Laboratory, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Sarah B. Hale
- Department of Chemistry,
Burke Laboratory, Dartmouth College, Hanover, New Hampshire 03755, United States
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14
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Abstract
Benzoquinone ansamycin antibiotic herbimycin A was synthesized in 19 linear steps and 4.2% yield. Highlighted is the design of a chiral γ-lactone as the C11-C15 synthon that enabled a facile catalytic asymmetric synthesis of the challenging C8-C20 fragment of the target molecule. The easy access to the stereogenic centers and high overall yield made the strategy applicable in the molecular editing of benzoquinone ansamycins.
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Affiliation(s)
- Rui Yan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicine, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences , No. 1 Xiannongtan Street, Beijing 100050, China
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15
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Bian C, Yan R, Yu X. Total synthesis of reblastatin: convenient preparation of coupling partners and scaled assembly. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Kaur N. Metal catalysts: applications in higher-membered N-heterocycles synthesis. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2014. [DOI: 10.1007/s13738-014-0451-5] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Aeluri M, Chamakuri S, Dasari B, Guduru SKR, Jimmidi R, Jogula S, Arya P. Small Molecule Modulators of Protein–Protein Interactions: Selected Case Studies. Chem Rev 2014; 114:4640-94. [DOI: 10.1021/cr4004049] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Madhu Aeluri
- Dr. Reddy’s Institute
of Life Sciences (DRILS), University of Hyderabad Campus Gachibowli, Hyderabad 500046, India
| | - Srinivas Chamakuri
- Dr. Reddy’s Institute
of Life Sciences (DRILS), University of Hyderabad Campus Gachibowli, Hyderabad 500046, India
| | - Bhanudas Dasari
- Dr. Reddy’s Institute
of Life Sciences (DRILS), University of Hyderabad Campus Gachibowli, Hyderabad 500046, India
| | - Shiva Krishna Reddy Guduru
- Dr. Reddy’s Institute
of Life Sciences (DRILS), University of Hyderabad Campus Gachibowli, Hyderabad 500046, India
| | - Ravikumar Jimmidi
- Dr. Reddy’s Institute
of Life Sciences (DRILS), University of Hyderabad Campus Gachibowli, Hyderabad 500046, India
| | - Srinivas Jogula
- Dr. Reddy’s Institute
of Life Sciences (DRILS), University of Hyderabad Campus Gachibowli, Hyderabad 500046, India
| | - Prabhat Arya
- Dr. Reddy’s Institute
of Life Sciences (DRILS), University of Hyderabad Campus Gachibowli, Hyderabad 500046, India
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18
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Chaskar A, Murugan K. Direct allylation of alcohols using allyltrimethylsilane: a move towards an economical and ecological protocol for C–C bond formation. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00043a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Andreev MV, Medvedeva AS, Safronova LP. Efficient tandem synthesis of 3-alkylaminoprop-2-enamides from 3-trimethylsilylprop-2-ynamides. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2013. [DOI: 10.1134/s1070428013060031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Jeso V, Iqbal S, Hernandez P, Cameron MD, Park H, LoGrasso PV, Micalizio GC. Synthesis of benzoquinone ansamycin-inspired macrocyclic lactams from shikimic acid. Angew Chem Int Ed Engl 2013; 52:4800-4. [PMID: 23554224 DOI: 10.1002/anie.201301323] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Valer Jeso
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way #3A2, Jupiter, FL 33458, USA
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21
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Jeso V, Iqbal S, Hernandez P, Cameron MD, Park H, LoGrasso PV, Micalizio GC. Synthesis of Benzoquinone Ansamycin-Inspired Macrocyclic Lactams from Shikimic Acid. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301323] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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22
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Kitson RRA, Moody CJ. Learning from nature: advances in geldanamycin- and radicicol-based inhibitors of Hsp90. J Org Chem 2013; 78:5117-41. [PMID: 23496136 DOI: 10.1021/jo4002849] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Natural products have been fundamental in the development of new therapeutic agents predicated on the inhibition of heat shock protein 90 (Hsp90). This Perspective describes the influential role of the benzoquinone ansamycin geldanamycin and the resorcylic acid macrolactone radicicol not only in driving forward drug discovery programs but also in inspiring organic chemists to develop innovative methodology for the synthesis of natural products and analogues with improved properties.
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Affiliation(s)
- Russell R A Kitson
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK
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23
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Zhang J, Loh TP. Ruthenium- and rhodium-catalyzed cross-coupling reaction of acrylamides with alkenes: efficient access to (Z,E)-dienamides. Chem Commun (Camb) 2012; 48:11232-4. [PMID: 23069732 DOI: 10.1039/c2cc36137j] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Ruthenium- and rhodium-catalyzed direct oxidative cross-coupling reactions of acrylamides with alkenes were developed. These methods provide an efficient route for the synthesis of (Z,E)-dienamides in excellent yields with good stereoselectivity. The catalytic systems allowed oxidative olefination of a wide range of alkenes bearing different functional groups, such as CO(2)R, COMe, SO(2)Ph, aryl, CONHBn, CN, PO(OEt)(2), as well as Weinreb amide.
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Affiliation(s)
- Jian Zhang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637616
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24
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Hampel T, Neubauer T, van Leeuwen T, Bach T. Stereoselective Preparation of (E)-Configured 1,2-Disubstituted Propenes from Two Aldehydes by a Two-Carbon Stitching Strategy: Convergent Synthesis of 18,21-Diisopropyl-Geldanamycin Hydroquinone and Its C7 Epimer. Chemistry 2012; 18:10382-92. [DOI: 10.1002/chem.201201600] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Indexed: 11/07/2022]
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25
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Jeso V, Cherry L, Macklin TK, Pan SC, LoGrasso PV, Micalizio GC. Convergent synthesis and discovery of a natural product-inspired paralog-selective Hsp90 inhibitor. Org Lett 2011; 13:5108-11. [PMID: 21866939 DOI: 10.1021/ol2019828] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A convergent synthesis of benzoquinone ansamycin analogs is described that proceeds by a sequence of metallacycle-mediated alkyne-alkyne coupling, followed by site- and stereoselective dihydroxylation and global carbamate formation. These studies have led to (1) validation of alkyne-alkyne coupling to produce geldanamycin analogs that lack the problematic quinone, (2) the discovery that C6-C7 bis-carbamate functionality is compatible with Hsp90 inhibition, and (3) the identification of 1 as a nonquinone geldanamycin-inspired paralog-selective Hsp90 inhibitor.
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Affiliation(s)
- Valer Jeso
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, USA
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Johnson VA, Singh EK, Nazarova LA, Alexander LD, McAlpine SR. Macrocyclic inhibitors of hsp90. Curr Top Med Chem 2010; 10:1380-402. [PMID: 20536417 PMCID: PMC3105290 DOI: 10.2174/156802610792232088] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Accepted: 04/10/2010] [Indexed: 01/24/2023]
Abstract
Heat shock proteins (HSP) are a family of highly conserved proteins, whose expression increases in response to stresses that may threaten cell survival. Over the past decade, heat shock protein 90 (Hsp90) has emerged as a potential therapeutic target for cancer as it plays a vital role in normal cell maturation and acts as a molecular chaperone for proper folding, assembly, and stabilization of many oncogenic proteins. To date, a majority of Hsp90 inhibitors that have been discovered are macrocycles. The relatively rigid conformation provided by the macrocyclic scaffold allows for a selective interaction with a biological target such as Hsp90. This review highlights the discovery and development of nine macrocycles that inhibit the function of Hsp90, detailing their potency and the client proteins affected by Hsp90 inhibition.
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Affiliation(s)
- Victoria A. Johnson
- Department of Chemistry and Biochemistry, 5500 Campanile Drive, San Diego State University, San Diego, CA 92182-1030
| | - Erinprit K. Singh
- Department of Chemistry and Biochemistry, 5500 Campanile Drive, San Diego State University, San Diego, CA 92182-1030
| | - Lidia A. Nazarova
- Department of Chemistry and Biochemistry, 5500 Campanile Drive, San Diego State University, San Diego, CA 92182-1030
| | - Leslie D. Alexander
- Department of Chemistry and Biochemistry, 5500 Campanile Drive, San Diego State University, San Diego, CA 92182-1030
| | - Shelli R. McAlpine
- Department of Chemistry and Biochemistry, 5500 Campanile Drive, San Diego State University, San Diego, CA 92182-1030
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Andrus MB, Wong Y, Liu J, Beebe K, Neckers LM. Synthesis and evaluation of 8,9-amido analogs of geldanamycin. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.09.091] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Muñoz-Hernández L, Soderquist JA. Asymmetric γ-Methoxyallylation with the Robust 10-TMS-9-Borabicyclo[3.3.2]decanes. Org Lett 2009; 11:2571-4. [DOI: 10.1021/ol900865y] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - John A. Soderquist
- Department of Chemistry, University of Puerto Rico, Rio Piedras, Puerto Rico 00931-3346
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Tietze LF, Kinzel T, Brazel CC. The domino multicomponent allylation reaction for the stereoselective synthesis of homoallylic alcohols. Acc Chem Res 2009; 42:367-78. [PMID: 19154154 DOI: 10.1021/ar800170y] [Citation(s) in RCA: 193] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Stereoselective allylations of carbonyl compounds such as aldehydes and ketones are useful but challenging reactions in organic chemistry. The resulting chiral secondary and tertiary homoallylic alcohols or ethers are valuable building blocks in the synthesis of biologically active natural compounds and pharmaceuticals. Although researchers have developed several methods for the facially selective allylation of aldehydes, the stereoselective allylation of ketones still poses a severe problem. We have developed a highly diastereoselective domino multicomponent allylation reaction of a ketone and allyltrimethyl silane using the trimethylsilyl ether of a norpseudoephedrine or mandelic acid derivative as an auxiliary with a diastereoselectivity of up to 98:2. The reaction is performed at -78 degrees C in the presence of a catalytic amount of trifluoromethanesulfonic acid and leads to the corresponding tertiary ethers. The procedure can also be used for the allylation of aliphatic aldehydes with a diastereomeric ratio >99:1. Ketones give the 4,1'-syn product while the aldehydes give the reversed selectivity to yield a 4,1'-anti product. In addition, the reaction of gamma-substituted allyl silanes with ketones yields a product with two stereogenic centers and an anti diastereoselectivity of >99:1. The homoallylic ethers formed in the domino multicomponent process can be used in further synthetic transformations: the auxiliary can serve as a protecting group or can be cleaved reductively to give the corresponding homoallylic alcohols. Based on a number of both experimental and theoretical studies of the reaction mechanism, we conclude that an intermediate oxocarbenium ion is formed in the reaction of ketones. The oxocarbenium ion is attacked by the allyl silane during the stereogenic step. Using density functional theory methods, we could trace the observed stereoselectivity phenomena back to open transition states (TSs) where there is no interaction between the silane's trimethylsilyl group and the former carbonyl oxygen. On the contrary, the reaction with aldehydes forms an intermediate oxazolidinium salt, which explains the opposite selectivity. We have used the new allylation procedure in several total syntheses of natural products such as vitamin E, (+)-hydroxymyoporone, 5,6-dihydrocineromycin B, and polyoxygenated cembrenes.
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Affiliation(s)
- Lutz F. Tietze
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
| | - Tom Kinzel
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
| | - C. Christian Brazel
- Institut für Organische und Biomolekulare Chemie der Georg-August-Universität Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
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Evano G, Blanchard N, Toumi M. Copper-mediated coupling reactions and their applications in natural products and designed biomolecules synthesis. Chem Rev 2008; 108:3054-131. [PMID: 18698737 DOI: 10.1021/cr8002505] [Citation(s) in RCA: 1686] [Impact Index Per Article: 105.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Gwilherm Evano
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint Quentin en Yvelines, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France.
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Abstract
An enantioselective synthesis of the Hsp90 inhibitor geldanamycin was achieved in 20 linear steps and 2.0% overall yield from 2-methoxyhydroquinone. The synthesis is highlighted by a regio- and stereoselective hydroboration reaction; a Sc(OTf)(3)/Et(3)SiH-mediated pyran ring-opening reaction; an enantioselective crotylation to simultaneously install the C8-C9 (E) -trisubstituted olefin, the C10 and C11 stereocenters; a chelation-controlled asymmetric metallated acetylide addition; and an intramolecular copper(I)-mediated aryl amidation reaction to close the 19-membered macrolactam.
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Affiliation(s)
- Hua-Li Qin
- Department of Chemistry and Center for Chemical Methodology and Library Development, Metcalf Center for Science and Engineering, Boston University, Boston, MA 02215, USA
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Affiliation(s)
- Marco Lombardo
- Dipartimento di Chimica "G. Ciamician", Università degli Studi di Bologna, via Selmi 2, 40126 Bologna, Italy.
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Abstract
[structure: see text] Hsp90 has recently emerged as a promising biological target for treatment of cancer. Herbimycin A and other members of the benzoquinoid ansamycin class of natural products are known to inhibit Hsp90 activity. The total synthesis of herbimycin A was achieved from the commercially available Roche ester 1 by using allylmetals to control the stereogenic centers at C6, C7, C10, C11, and C12 and a ring-closing metathesis to control the (Z)-double bond of the (E,Z)-dienic moiety.
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Affiliation(s)
- Sophie Canova
- Laboratoire de Chimie Organique, associé au CNRS, ESPI, 10 rue Vauquelin, 75231 Paris Cedex 05, France
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Wang X, Porco JA. Synthesis of the Tetracyclic Core of the Tetrapetalones through Transannular Oxidative [4+3] Cyclization. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200500247] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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Wang X, Porco JA. Synthesis of the Tetracyclic Core of the Tetrapetalones through Transannular Oxidative [4+3] Cyclization. Angew Chem Int Ed Engl 2005; 44:3067-71. [PMID: 15832389 DOI: 10.1002/anie.200500247] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiang Wang
- Department of Chemistry and Center for Chemical Methodology and Library Development, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
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Ramachandran PV, Burghardt TE. Highly Diastereoselective and Enantioselective Preparation of Homoallylic Amines: Application for the Synthesis of β-Amino Acids and γ-Lactams. Chemistry 2005; 11:4387-95. [PMID: 15880541 DOI: 10.1002/chem.200401295] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Reactions of N-silyl- and N-aluminoimines with B-allyldiisopinocampheylborane in the presence of methanol, followed by oxidative workup furnished homoallylic amines in good yields and high ee. A 11B NMR spectroscopy study revealed that the reactions do not proceed, even at room temperature, unless a molar equivalent of water or methanol is added. The first reagent-controlled asymmetric crotylboration and alkoxyallylboration of aldimines furnishing beta-methyl or beta-alkoxy homoallylic amines in very high diastereoselectivity and enantioselectivity are reported herein. Crotylboration and alkoxyallylboration of imines proceed only with the "allyl"-boron "ate" complexes, instead of the "allyl"-dialkylboron reagents used with aldehydes. The addition of methanol is necessary for these reactions as well. Application of this methodology for the conversion of representative nitriles to beta-amino acids in two steps has been described. Additionally, a procedure for the preparation of chiral delta-amino alcohols and gamma-lactams from nitriles is also reported.
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Affiliation(s)
- P Veeraraghavan Ramachandran
- Herbert C. Brown Center for Borane Research, Department of Chemistry, Purdue University, West Lafayette, IN 47907-2084, USA
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Schneekloth JS, Crews CM. Chemical approaches to controlling intracellular protein degradation. Chembiochem 2005; 6:40-6. [PMID: 15532104 PMCID: PMC2556563 DOI: 10.1002/cbic.200400274] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2004] [Indexed: 11/08/2022]
Affiliation(s)
- John S. Schneekloth
- Departments of Molecular, Cellular, and Developmental Biology, Chemistry, and Pharmacology, Yale University, New Haven, CT 06520 (USA), Fax: (+1) 20-432-6161
| | - Craig M. Crews
- Departments of Molecular, Cellular, and Developmental Biology, Chemistry, and Pharmacology, Yale University, New Haven, CT 06520 (USA), Fax: (+1) 20-432-6161
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