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Zhang L, Cao T, Jiang H, Zhu S. Deconstructive Reorganization: De Novo Synthesis of Hydroxylated Benzofuran. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ling Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
| | - Tongxiang Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology 510640 Guangzhou China
- State Key Laboratory of Elemento-Organic ChemistryNankai University 300071 Tianjing China
- Singfar Laboratories 510670 Guangzhou China
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Zhang L, Cao T, Jiang H, Zhu S. Deconstructive Reorganization: De Novo Synthesis of Hydroxylated Benzofuran. Angew Chem Int Ed Engl 2020; 59:4670-4677. [PMID: 31961991 DOI: 10.1002/anie.201915212] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/18/2020] [Indexed: 12/26/2022]
Abstract
An unprecedented deconstructive reorganization strategy for the de novo synthesis of hydroxylated benzofurans from kojic acid- or maltol-derived alkynes is reported. In this reaction, both the benzene and furan rings were simultaneously constructed, whereas the pyrone moiety of the kojic acid or maltol was deconstructed and then reorganized into the benzene ring as a six-carbon component. Through this strategy, at least one free hydroxyl group was introduced into the benzene ring in a substitution-pattern tunable fashion without protection-deprotection and redox adjustment. With this method, a large number of hydroxylated benzofuran derivatives with different substitution-patterns have been prepared efficiently. This methodology has also been shown as the key step in a collective total synthesis of hydroxylated benzofuran-containing natural products (11 examples).
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Affiliation(s)
- Ling Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Tongxiang Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 300071, Tianjing, China.,Singfar Laboratories, 510670, Guangzhou, China
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Agasti S, Pal T, Achar TK, Maiti S, Pal D, Mandal S, Daud K, Lahiri GK, Maiti D. Regioselective Synthesis of Fused Furans by Decarboxylative Annulation of α,β‐Alkenyl Carboxylic Acid with Cyclic Ketone: Synthesis of Di‐Heteroaryl Derivatives. Angew Chem Int Ed Engl 2019; 58:11039-11043. [DOI: 10.1002/anie.201906264] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Soumitra Agasti
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Tapas Pal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Tapas Kumar Achar
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Siddhartha Maiti
- Department of Biosciences & BioengineeringIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Debasis Pal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Smita Mandal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Kishan Daud
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Goutam Kumar Lahiri
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
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Agasti S, Pal T, Achar TK, Maiti S, Pal D, Mandal S, Daud K, Lahiri GK, Maiti D. Regioselective Synthesis of Fused Furans by Decarboxylative Annulation of α,β‐Alkenyl Carboxylic Acid with Cyclic Ketone: Synthesis of Di‐Heteroaryl Derivatives. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906264] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Soumitra Agasti
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Tapas Pal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Tapas Kumar Achar
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Siddhartha Maiti
- Department of Biosciences & BioengineeringIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Debasis Pal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Smita Mandal
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Kishan Daud
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Goutam Kumar Lahiri
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
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5
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Wang X, Zhang Y, Ponomareva LV, Qiu Q, Woodcock R, Elshahawi SI, Chen X, Zhou Z, Hatcher BE, Hower JC, Zhan CG, Parkin S, Kharel MK, Voss SR, Shaaban KA, Thorson JS. Mccrearamycins A-D, Geldanamycin-Derived Cyclopentenone Macrolactams from an Eastern Kentucky Abandoned Coal Mine Microbe. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612447] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiachang Wang
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Yinan Zhang
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Larissa V. Ponomareva
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Qingchao Qiu
- Department of Biology; University of Kentucky; Lexington KY 40506 USA
| | - Ryan Woodcock
- Department of Biology; University of Kentucky; Lexington KY 40506 USA
| | - Sherif I. Elshahawi
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Xiabin Chen
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Ziyuan Zhou
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Bruce E. Hatcher
- Kentucky Division of Abandoned Mine Lands; 300 Sower Blvd Frankfort KY 40601 USA
| | - James C. Hower
- Center for Applied Energy Research; University of Kentucky; Lexington KY 40511 USA
| | - Chang-Guo Zhan
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Sean Parkin
- Department of Chemistry; University of Kentucky; Lexington KY 40506 USA
| | - Madan K. Kharel
- School of Pharmacy; University of Maryland Eastern Shore; Princess Anne Maryland 21853 USA
| | - S. Randal Voss
- Department of Biology; University of Kentucky; Lexington KY 40506 USA
| | - Khaled A. Shaaban
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
| | - Jon S. Thorson
- Center for Pharmaceutical Research and Innovation; College of Pharmacy; University of Kentucky; Lexington Kentucky 40536 USA
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Wang X, Zhang Y, Ponomareva LV, Qiu Q, Woodcock R, Elshahawi SI, Chen X, Zhou Z, Hatcher BE, Hower JC, Zhan CG, Parkin S, Kharel MK, Voss SR, Shaaban KA, Thorson JS. Mccrearamycins A-D, Geldanamycin-Derived Cyclopentenone Macrolactams from an Eastern Kentucky Abandoned Coal Mine Microbe. Angew Chem Int Ed Engl 2017; 56:2994-2998. [PMID: 28140487 DOI: 10.1002/anie.201612447] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 01/18/2017] [Indexed: 12/13/2022]
Abstract
Four cyclopentenone-containing ansamycin polyketides (mccrearamycins A-D), and six new geldanamycins (Gdms B-G, including new linear and mycothiol conjugates), were characterized as metabolites of Streptomyces sp. AD-23-14 isolated from the Rock Creek underground coal mine acid drainage site. Biomimetic chemical conversion studies using both simple synthetic models and Gdm D confirmed that the mccrearamycin cyclopentenone derives from benzilic acid rearrangement of 19-hydroxy Gdm, and thereby provides a new synthetic derivatization strategy and implicates a potential unique biocatalyst in mccrearamycin cyclopentenone formation. In addition to standard Hsp90α binding and cell line cytotoxicity assays, this study also highlights the first assessment of Hsp90α modulators in a new axolotl embryo tail regeneration (ETR) assay as a potential new whole animal assay for Hsp90 modulator discovery.
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Affiliation(s)
- Xiachang Wang
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Yinan Zhang
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Larissa V Ponomareva
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Qingchao Qiu
- Department of Biology, University of Kentucky, Lexington, KY, 40506, USA
| | - Ryan Woodcock
- Department of Biology, University of Kentucky, Lexington, KY, 40506, USA
| | - Sherif I Elshahawi
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Xiabin Chen
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Ziyuan Zhou
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Bruce E Hatcher
- Kentucky Division of Abandoned Mine Lands, 300 Sower Blvd, Frankfort, KY, 40601, USA
| | - James C Hower
- Center for Applied Energy Research, University of Kentucky, Lexington, KY, 40511, USA
| | - Chang-Guo Zhan
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Sean Parkin
- Department of Chemistry, University of Kentucky, Lexington, KY, 40506, USA
| | - Madan K Kharel
- School of Pharmacy, University of Maryland Eastern Shore, Princess Anne, Maryland, 21853, USA
| | - S Randal Voss
- Department of Biology, University of Kentucky, Lexington, KY, 40506, USA
| | - Khaled A Shaaban
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
| | - Jon S Thorson
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, Kentucky, 40536, USA
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Naveen T, Deb A, Maiti D. Copper/P(tBu) 3 -Mediated Regiospecific Synthesis of Fused Furans and Naphthofurans. Angew Chem Int Ed Engl 2016; 56:1111-1115. [PMID: 27996192 DOI: 10.1002/anie.201609401] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Indexed: 01/12/2023]
Abstract
A novel [3+2] cycloaddition between a variety of cyclic ketones and diverse olefins or alkynes can be effectively promoted by copper in combination with the tri-tert-butylphosphine [P(tBu)3 ] ligand. This protocol exhibits excellent selectivity and provides an exemplary set of fused heterocycles in good to excellent yields. Present strategy also represents an extremely simple and atom-economic way to construct substituted fused furans and naphthofurans from readily available starting materials under mild reaction conditions. The utility of the method is further demonstrated by the synthesis of chiral furans from (R)-(-)-carvone and (S)-(+)-carvone. A plausible mechanism involving the oxidative radical cyclization has been suggested based on experimental observations.
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Affiliation(s)
- Togati Naveen
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Arghya Deb
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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Chen Y, Wang L, Sun N, Xie X, Zhou X, Chen H, Li Y, Liu Y. Gold(I)-Catalyzed Furan-yne Cyclizations Involving 1,2-Rearrangement: Efficient Synthesis of Functionalized 1-Naphthols and Its Application to the Synthesis of Wailupemycin G. Chemistry 2014; 20:12015-9. [DOI: 10.1002/chem.201403113] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Indexed: 11/05/2022]
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