1
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Romero EO, Perkins JC, Burch JE, Delgadillo DA, Nelson HM, Narayan ARH. Chemoenzymatic Synthesis of (+)-Xyloketal B. Org Lett 2023; 25:1547-1552. [PMID: 36827601 DOI: 10.1021/acs.orglett.3c00334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Xyloketal B is a pentacyclic fungal marine natural product that has shown potential for the treatment of diseases such as Alzheimer's disease and atherosclerosis. Herein, we describe the first asymmetric synthesis of this natural product, which relies on a chemoenzymatic strategy. This approach leverages a biocatalytic benzylic hydroxylation to access to an ortho-quinone methide intermediate which is captured in a [4 + 2] cycloaddition to stereoselectively yield a key cyclic ketal intermediate enroute to (+)-xyloketal B. The relative configuration of this intermediate was rapidly confirmed as the desired stereoisomer using MicroED. To complete the synthesis, a second ortho-quinone methide was accessed through a reductive approach, ultimately leading to the stereoselective synthesis of (+)-xyloketal B.
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Affiliation(s)
- Evan O Romero
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States.,Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jonathan C Perkins
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States.,Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jessica E Burch
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - David A Delgadillo
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Hosea M Nelson
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Alison R H Narayan
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States.,Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, United States.,Program in Chemical Biology, University of Michigan, Ann Arbor, Michigan 48109, United States
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2
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Happy S, Junaid M, Yadagiri D. Reactivity of quinone methides with carbenes generated from α-diazocarbonyl compounds and related compounds. Chem Commun (Camb) 2022; 59:29-42. [PMID: 36484325 DOI: 10.1039/d2cc05623b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Over the years, quinone methides have broadly been applied in synthesis and biological systems for synthesizing heterocyclic compounds and biologically active molecules. In this feature article, we have discussed the novel and uncovered reactivity of o-quinone methides, p-quinone methides, aza-o-quinone methides, and indolyl-2-methides with carbenes generated from α-diazocarbonyl compounds and related compounds. Two in situ-generated transient intermediates undergo cycloannulation reactions, metathesis-type reactions, 1,6-conjugate addition reactions, cyclopropanation reactions, and many other transformations to access nitrogen- and oxygen-containing heterocyclic compounds and beyond. The reactivity of quinone methides and carbenes is observed in various metal catalysts, Brønsted-acids, Lewis acids, phase transfer catalysts, additives, and visible-light-induced transformations.
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Affiliation(s)
- Sharma Happy
- Department of Chemistry, Laboratory of Organic Synthesis & Catalysis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Mohammad Junaid
- Department of Chemistry, Laboratory of Organic Synthesis & Catalysis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Dongari Yadagiri
- Department of Chemistry, Laboratory of Organic Synthesis & Catalysis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
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3
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Ali K, Mishra P, Kumar A, Reddy DN, Chowdhury S, Panda G. Reactivity vs. selectivity of quinone methides: synthesis of pharmaceutically important molecules, toxicity and biological applications. Chem Commun (Camb) 2022; 58:6160-6175. [PMID: 35522910 DOI: 10.1039/d2cc00838f] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Quinone methides (QMs) are considered to be highly reactive intermediates because of their aromatization both in chemical and biological systems. Being highly accessible, quinone methides (QMs) have been widely exploited and their concurrent use has been manifested for the synthesis of tertiary and quaternary carbon centers of bioactives, drugs and drug-like molecules. In this feature article, the synthetic routes, structure-reactivity relationships and synthetic applications of quinone methides are discussed. Formation of the intermediates during bioactivation of different chemical entities and possible chemical manifestations leading to their toxicity in biological systems are also covered.
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Affiliation(s)
- Kasim Ali
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Sector 10, Lucknow 226031, UP, India. .,Academy of Scientific & Industrial Research (AcSIR), Ghaziabad, Uttar Pradesh-201 002, India
| | - Prajjval Mishra
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Sector 10, Lucknow 226031, UP, India.
| | - Awnish Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Sector 10, Lucknow 226031, UP, India.
| | - Damodara N Reddy
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Sector 10, Lucknow 226031, UP, India. .,Academy of Scientific & Industrial Research (AcSIR), Ghaziabad, Uttar Pradesh-201 002, India
| | - Sushobhan Chowdhury
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Sector 10, Lucknow 226031, UP, India.
| | - Gautam Panda
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Sector 10, Lucknow 226031, UP, India. .,Academy of Scientific & Industrial Research (AcSIR), Ghaziabad, Uttar Pradesh-201 002, India
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4
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Total syntheses of hyperaspidinols A and B enabled by a bioinspired diastereoselective cascade sequence. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Bemis CY, Ungarean CN, Shved AS, Jamieson CS, Hwang T, Lee KS, Houk KN, Sarlah D. Total Synthesis and Computational Investigations of Sesquiterpene-Tropolones Ameliorate Stereochemical Inconsistencies and Resolve an Ambiguous Biosynthetic Relationship. J Am Chem Soc 2021; 143:6006-6017. [DOI: 10.1021/jacs.1c02150] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Christopher Y. Bemis
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois, Urbana, Illinois 61801, United States
| | - Chad N. Ungarean
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois, Urbana, Illinois 61801, United States
| | - Alexander S. Shved
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois, Urbana, Illinois 61801, United States
| | - Cooper S. Jamieson
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Taehwan Hwang
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois, Urbana, Illinois 61801, United States
| | - Ken S. Lee
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois, Urbana, Illinois 61801, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - David Sarlah
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois, Urbana, Illinois 61801, United States
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6
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Purdy TN, Kim MC, Cullum R, Fenical W, Moore BS. Discovery and Biosynthesis of Tetrachlorizine Reveals Enzymatic Benzylic Dehydrogenation via an ortho-Quinone Methide. J Am Chem Soc 2021; 143:3682-3686. [PMID: 33656337 DOI: 10.1021/jacs.0c12415] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ortho-quinone methides (o-QMs) are reactive intermediates in biosynthesis that give rise to a variety of intra- and intermolecular cyclization/addition products in bacteria, fungi, and plants. Herein, we report a new metabolic deviation of an o-QM intermediate in a benzylic dehydrogenation reaction that links the newly described marine bacterial natural products dihydrotetrachlorizine and tetrachlorizine. We discovered these novel dichloropyrrole-containing compounds from actinomycete strain AJS-327 that unexpectedly harbors in its genome a biosynthetic gene cluster (BGC) of striking similarity to that of chlorizidine, another marine alkaloid bearing a different carbon skeleton. Heterologous expression of the homologous flavin-dependent oxidoreductase enzymes Tcz9 and Clz9 revealed their native functions in tetrachlorizine and chlorizidine biosynthesis, respectively, supporting divergent oxidative dehydrogenation and pyrrolizine-forming reactions. Swapping these berberine bridge enzyme-like oxidoreductases, we produced cyclized and dehydrogenated analogs of tetrachlorizine and chlorizidine, including a dearomatized chlorizidine analog that stabilizes an o-QM via conjugation with a 3H-pyrrolizine ring.
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7
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Zhao C, Shah BH, Li H, Wu X, Zhang YJ. Palladium‐Catalyzed Allylic Cycloaddition of Vinylethylene Carbonates with 3‐Nitrochromone. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000714] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Can Zhao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road 200240 Shanghai P. R. China
| | - Babar Hussain Shah
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road 200240 Shanghai P. R. China
| | - Hongfang Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road 200240 Shanghai P. R. China
- Department of Chemistry College of Science Yanbian University 977 Gongyuan Road, Yanji 133002 Jilin P. R. China
| | - Xue Wu
- Department of Chemistry College of Science Yanbian University 977 Gongyuan Road, Yanji 133002 Jilin P. R. China
| | - Yong Jian Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road 200240 Shanghai P. R. China
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8
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Luo SL, Hu LJ, Huang XJ, Su JC, Shao XH, Wang L, Xu HH, Li CC, Wang Y, Ye WC. Discovery and Biomimetic Synthesis of a Phloroglucinol-Terpene Adduct Collection from Baeckea frutescens and Its Biogenetic Origin Insight. Chemistry 2020; 26:11104-11108. [PMID: 32315480 DOI: 10.1002/chem.202001111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Indexed: 01/20/2023]
Abstract
A phloroglucinol-terpene adduct (PTA) collection consisting of twenty-four molecules featuring three skeletons was discovered from Baeckea frutescens. Inspired by its biosynthetic hypothesis, we synthesized this PTA collection by reductive activation of stable phloroglucinol precursors into highly reactive ortho-quinone methide (o-QM) intermediates and subsequently Diels-Alder cycloaddition. We also demonstrated, for the first time, the generation process of the active o-QM by performing dynamic NMR and HPLC-MS monitoring experiments. Moreover, the PTA collection showed significant antifeedant effect toward the Plutella xylostella larvae.
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Affiliation(s)
- Shi-Lin Luo
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of, TCM and New Drugs Research, Jinan University, Guangzhou, 510632, P. R. China
| | - Li-Jun Hu
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of, TCM and New Drugs Research, Jinan University, Guangzhou, 510632, P. R. China
| | - Xiao-Jun Huang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of, TCM and New Drugs Research, Jinan University, Guangzhou, 510632, P. R. China
| | - Jun-Cheng Su
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of, TCM and New Drugs Research, Jinan University, Guangzhou, 510632, P. R. China
| | - Xue-Hua Shao
- Institute of Fruit Tree Research, Guangdong Academy of, Agricultural Sciences, Guangzhou, 510640, P. R. China
| | - Lei Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of, TCM and New Drugs Research, Jinan University, Guangzhou, 510632, P. R. China
| | - Han-Hong Xu
- State Key Laboratory for Conservation and Utilization of, Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, P. R. China
| | - Chuang-Chuang Li
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, P. R. China
| | - Ying Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of, TCM and New Drugs Research, Jinan University, Guangzhou, 510632, P. R. China
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, P. R. China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of, TCM and New Drugs Research, Jinan University, Guangzhou, 510632, P. R. China
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9
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Popova AV, Mrug GP, Bondarenko SP, Frasinyuk MS. 6-Hydroxyaurone aminomethyl derivatives in the inverse electron-demand Diels–Alder reaction. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-019-02598-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Omote M, Karuo Y, Dousei S, Sakamoto M, Tarui A, Sato K, Kawai K. Construction of Quaternary Carbon Center by the Reaction of Aza-o-Quinone Methide Mediated Carbocation Intermediate. HETEROCYCLES 2020. [DOI: 10.3987/com-19-s(f)33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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11
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Affiliation(s)
- Dattatraya H. Dethe
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - Boda VijayKumar
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
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12
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Panda B. Total Synthesis of Xyloketals and Related Natural Product Alboatrin: Strategies and Tactics. ChemistrySelect 2019. [DOI: 10.1002/slct.201900779] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Biswajit Panda
- Department of ChemistryCity College, 102/1 Raja Rammohan Sarani Kolkata- 700009 India
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13
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Dethe DH, B VK, Maiti R. Biomimetic total syntheses of chromane meroterpenoids, guadials B and C, guapsidial A and psiguajadial D. Org Biomol Chem 2019; 16:4793-4796. [PMID: 29931003 DOI: 10.1039/c8ob01092g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The first biomimetic total syntheses of chromane meroterpenoids, guadials B and C, guapsidial A and psiguajadial D have been completed. The key synthetic transformation involves an efficient and high yielding hetero-Diels-Alder reaction. The two structurally isomeric natural products, guadials B and C, were obtained from a common o-quinone methide in the separate reactions with α-pinene and β-pinene, respectively. The two regioisomeric natural products, guapsidial A and psiguajadial D, were achieved in a single chemical operation.
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Affiliation(s)
- Dattatraya H Dethe
- Department of Chemistry, Indian Institute of Technology, Kanpur, 208016, India.
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14
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Zhou F, Cheng Y, Liu XP, Chen JR, Xiao WJ. A visible light photoredox catalyzed carbon radical-mediated generation of ortho-quinone methides for 2,3-dihydrobenzofuran synthesis. Chem Commun (Camb) 2019; 55:3117-3120. [DOI: 10.1039/c9cc00727j] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A visible light photoredox-catalyzed carbon radical-mediated strategy for in situ formation of ortho-quinone methides from 2-vinyl phenols towards 2,3-dihydrobenzofuran synthesis is described.
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Affiliation(s)
- Fan Zhou
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Ying Cheng
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Xiao-Peng Liu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Jia-Rong Chen
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
| | - Wen-Jing Xiao
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- International Joint Research Center for Intelligent Biosensing Technology and Health
- College of Chemistry
- Central China Normal University
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15
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Miao CB, Sun YF, Wu H, Sun XQ, Yang HT. CuI-Catalyzed Selective 3-Alkylation of Indoles with N
-Tosylhydrazones and the I2
-Mediated Further Cyclization to Chromeno[2,3-b
]Indoles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800206] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Chun-Bao Miao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 People's Republic of China
| | - Yan-Fang Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 People's Republic of China
| | - He Wu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 People's Republic of China
| | - Xiao-Qiang Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 People's Republic of China
| | - Hai-Tao Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering; Changzhou University; Changzhou 213164 People's Republic of China
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16
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He X, Lv W, Shi X, Wei H, Shi M, Wang F. Practical way for the synthesis of 3,3′-bis-substituted benzo[d][1,2]oxaphosphole 2-oxides by phosphonylation of in situ generated o-quinone methides. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.01.093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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17
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Yang B, Gao S. Recent advances in the application of Diels–Alder reactions involving o-quinodimethanes, aza-o-quinone methides and o-quinone methides in natural product total synthesis. Chem Soc Rev 2018; 47:7926-7953. [DOI: 10.1039/c8cs00274f] [Citation(s) in RCA: 240] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review summarizes recent advances in Diels–Alder reactions involving o-QDMs, o-QMs and aza-o-QMs. The power and potential of this strategy in organic synthesis and natural product total synthesis is highlighted.
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Affiliation(s)
- Baochao Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Shuanhu Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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18
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Khan I, Zhao C, Zhang YJ. Pd-Catalyzed asymmetric decarboxylative cycloaddition of vinylethylene carbonates with 3-cyanochromones. Chem Commun (Camb) 2018; 54:4708-4711. [DOI: 10.1039/c8cc02456a] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An efficient method for the construction of furanobenzodihydropyran skeletons has been developed through Pd-catalyzed asymmetric decarboxylative cycloaddition of vinylethylene carbonates with 3-cyanochromones.
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Affiliation(s)
- Ijaz Khan
- School of Chemistry and Chemical Engineering, and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Can Zhao
- School of Chemistry and Chemical Engineering, and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Yong Jian Zhang
- School of Chemistry and Chemical Engineering, and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
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19
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Mrug GP, Kondratyuk KM, Bondarenko SP, Frasinyuk MS. Inverse electron demand Diels–Alder reactions with aminomethyl derivatives of 3-arylhydroxycoumarins. Chem Heterocycl Compd (N Y) 2016. [DOI: 10.1007/s10593-016-1907-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Frasinyuk MS, Mrug GP, Bondarenko SP, Khilya VP, Sviripa VM, Syrotchuk OA, Zhang W, Cai X, Fiandalo MV, Mohler JL, Liu C, Watt DS. Antineoplastic Isoflavonoids Derived from Intermediate ortho-Quinone Methides Generated from Mannich Bases. ChemMedChem 2016; 11:600-11. [PMID: 26889756 PMCID: PMC4818953 DOI: 10.1002/cmdc.201600008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/08/2016] [Indexed: 12/31/2022]
Abstract
The regioselective condensations of various 7-hydroxyisoflavonoids with bis(N,N-dimethylamino)methane in a Mannich reaction provided C-8 N,N-dimethylaminomethyl-substituted isoflavonoids in good yield. Similar condensations of 7-hydroxy-8-methylisoflavonoids led to the C-6-substituted analogs. Thermal eliminations of dimethylamine from these C-6 or C-8 N,N-dimethylaminomethyl-substituted isoflavonoids generated ortho-quinone methide intermediates within isoflavonoid frameworks for the first time. Despite other potential competing outcomes, these ortho-quinone methide intermediates trapped dienophiles including 2,3-dihydrofuran, 3,4-dihydro-2H-pyran, 3-(N,N-dimethylamino)-5,5-dimethyl-2-cyclohexen-1-one, 1-morpholinocyclopentene, and 1-morpholinocyclohexene to give various inverse electron-demand Diels-Alder adducts. Several adducts derived from 8-N,N-dimethylaminomethyl-substituted isoflavonoids displayed good activity in the 1-10 μm concentration range in an in vitro proliferation assay using the PC-3 prostate cancer cell line.
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Affiliation(s)
- Mykhaylo S Frasinyuk
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA.
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, 40536-0509, USA.
- Department of Chemistry of Bioactive Nitrogen-Containing Heterocyclic Bases, Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, Kyiv, 02094, Ukraine.
| | - Galyna P Mrug
- Department of Chemistry of Bioactive Nitrogen-Containing Heterocyclic Bases, Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Science of Ukraine, Kyiv, 02094, Ukraine
| | - Svitlana P Bondarenko
- Department of Chemistry, Taras Shevchenko Kyiv National University, Kyiv, 01601, Ukraine
| | - Volodymyr P Khilya
- Department of Chemistry, Taras Shevchenko Kyiv National University, Kyiv, 01601, Ukraine
| | - Vitaliy M Sviripa
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, 40536-0509, USA
| | - Oleksandr A Syrotchuk
- Central Laboratory for Quality Control of Medicines and Medical Products, Kyiv, 04053, Ukraine
| | - Wen Zhang
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA
- Lucille Parker Markey Cancer Center, University of Kentucky, Lexington, KY, 40536-0093, USA
| | - Xianfeng Cai
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA
- Lucille Parker Markey Cancer Center, University of Kentucky, Lexington, KY, 40536-0093, USA
| | - Michael V Fiandalo
- Department of Urology, Roswell Park Cancer Institute, Buffalo, NY, 14263, USA
| | - James L Mohler
- Department of Urology, Roswell Park Cancer Institute, Buffalo, NY, 14263, USA
| | - Chunming Liu
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA
- Lucille Parker Markey Cancer Center, University of Kentucky, Lexington, KY, 40536-0093, USA
| | - David S Watt
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536-0596, USA.
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, 40536-0509, USA.
- Lucille Parker Markey Cancer Center, University of Kentucky, Lexington, KY, 40536-0093, USA.
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21
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Spence JTJ, George JH. Total Synthesis of Peniphenones A–D via Biomimetic Reactions of a Common o-Quinone Methide Intermediate. Org Lett 2015; 17:5970-3. [DOI: 10.1021/acs.orglett.5b02902] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Justin T. J. Spence
- Department of Chemistry, University of Adelaide, Adelaide, SA 5005, Australia
| | - Jonathan H. George
- Department of Chemistry, University of Adelaide, Adelaide, SA 5005, Australia
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22
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Cañeque T, Gomes F, Mai TT, Maestri G, Malacria M, Rodriguez R. Synthesis of marmycin A and investigation into its cellular activity. Nat Chem 2015; 7:744-51. [PMID: 26291947 PMCID: PMC5892709 DOI: 10.1038/nchem.2302] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 06/10/2015] [Indexed: 12/29/2022]
Abstract
Anthracyclines such as doxorubicin are used extensively in the treatment of cancers. Anthraquinone-related angucyclines also exhibit antiproliferative properties and have been proposed to operate via similar mechanisms, including direct genome targeting. Here, we report the chemical synthesis of marmycin A and the study of its cellular activity. The aromatic core was constructed by means of a one-pot multistep reaction comprising a regioselective Diels-Alder cycloaddition, and the complex sugar backbone was introduced through a copper-catalysed Ullmann cross-coupling, followed by a challenging Friedel-Crafts cyclization. Remarkably, fluorescence microscopy revealed that marmycin A does not target the nucleus but instead accumulates in lysosomes, thereby promoting cell death independently of genome targeting. Furthermore, a synthetic dimer of marmycin A and the lysosome-targeting agent artesunate exhibited a synergistic activity against the invasive MDA-MB-231 cancer cell line. These findings shed light on the elusive pathways through which anthraquinone derivatives act in cells, pointing towards unanticipated biological and therapeutic applications.
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Affiliation(s)
- Tatiana Cañeque
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles du CNRS, 1 Avenue de la Terrasse, Gif sur-Yvette 91198, France
| | - Filipe Gomes
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles du CNRS, 1 Avenue de la Terrasse, Gif sur-Yvette 91198, France
| | - Trang Thi Mai
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles du CNRS, 1 Avenue de la Terrasse, Gif sur-Yvette 91198, France
| | - Giovanni Maestri
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles du CNRS, 1 Avenue de la Terrasse, Gif sur-Yvette 91198, France
- Department of Chemistry, Università degli Studi di Parma, Parco Area delle Scienze 17/a, Parma 43124, Italy
| | - Max Malacria
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles du CNRS, 1 Avenue de la Terrasse, Gif sur-Yvette 91198, France
- Institut Parisien de Chimie Moléculaire, Sorbonne Universités, UPMC Univ Paris 06, UMR CNRS 8232, Paris CEDEX 05 75252, France
| | - Raphaël Rodriguez
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles du CNRS, 1 Avenue de la Terrasse, Gif sur-Yvette 91198, France
- Institut Curie Research Center, Organic Synthesis and Cell Biology Group, 26 rue d’Ulm, Paris Cedex 05 75248, France
- CNRS UMR 3666, Paris 75005, France
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23
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Tan H, Liu H, Chen X, Yuan Y, Chen K, Qiu S. Concise Construction of the Tricyclic Core of Bullataketals Enabled by a Biomimetic Intermolecular (3 + 3) Type Cycloaddition. Org Lett 2015; 17:4050-3. [DOI: 10.1021/acs.orglett.5b01970] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Haibo Tan
- Program
for Natural Product Chemical Biology, Key Laboratory Plant Resources
Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, People’s Republic of China
| | - Hongxin Liu
- Program
for Natural Product Chemical Biology, Key Laboratory Plant Resources
Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, People’s Republic of China
| | - Xinzheng Chen
- School
of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, People’s Republic of China
| | - Yunfei Yuan
- Program
for Natural Product Chemical Biology, Key Laboratory Plant Resources
Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, People’s Republic of China
| | - Kai Chen
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Shengxiang Qiu
- Program
for Natural Product Chemical Biology, Key Laboratory Plant Resources
Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, People’s Republic of China
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24
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25
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Design and synthesis of novel xyloketal derivatives and their protective activities against H2O2-induced HUVEC injury. Mar Drugs 2015; 13:948-73. [PMID: 25686273 PMCID: PMC4344611 DOI: 10.3390/md13020948] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/31/2015] [Accepted: 02/04/2015] [Indexed: 11/27/2022] Open
Abstract
In this work, we designed and synthesized a series of amide derivatives (1–13), benzoxazine derivatives (16–28) and amino derivatives (29–30) from xyloketal B. All 28 new derivatives and seven known compounds (14, 15, 31–35) were evaluated for their protection against H2O2-induced HUVEC injury. 23 and 24 exhibited more potential protective activities than other derivatives; and the EC50 values of them and the leading compound 31 (xyloketal B) were 5.10, 3.59 and 15.97 μM, respectively. Meanwhile, a comparative molecular similarity indices analysis (CoMSIA) was constructed to explain the structural activity relationship of these xyloketal derivatives. This 3D QSAR model from CoMSIA suggested that the derived model exhibited good predictive ability in the external test-set validation. Derivative 24 fit well with the COMSIA map, therefore it possessed the highest activity of all compounds. Compounds 23, 24 and 31 (xyloketal B) were further to examine in the JC-1 mitochondrial membrane potential (MMP) assay of HUVECs using flow cytometry (FCM). The result indicated that 23 and 24 significantly inhibited H2O2-induced decrease of the cell mitochondrial membrane potential (ΔΨm) at 25 μM. Collectively, the protective effects of xyloketals on H2O2-induced endothelial cells may be generated from oxidation action by restraining ROS and reducing the MMP.
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26
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Shaikh AK, Varvounis G. One-pot cascade synthesis of 2,3-disubstituted 2,3-dihydrobenzofurans via ortho-quinone methide intermediates generated in situ. RSC Adv 2015. [DOI: 10.1039/c4ra15024d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple and efficient one-pot cascade reaction for the regioselective synthesis of trans or cis/trans-2,3-disubstituted 2,3-dihydrobenzofurans, is described.
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Affiliation(s)
- Abdul kadar Shaikh
- Section of Organic Chemistry and Biochemistry
- Department of Chemistry
- University of Ioannina
- 45110 Ioannina
- Greece
| | - George Varvounis
- Section of Organic Chemistry and Biochemistry
- Department of Chemistry
- University of Ioannina
- 45110 Ioannina
- Greece
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27
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Saha S, Schneider C. Brønsted Acid-Catalyzed, Highly Enantioselective Addition of Enamides to In Situ-Generatedortho-Quinone Methides: A Domino Approach to Complex Acetamidotetrahydroxanthenes. Chemistry 2014; 21:2348-52. [DOI: 10.1002/chem.201406044] [Citation(s) in RCA: 131] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Indexed: 11/09/2022]
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28
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Song L, Yao H, Tong R. Biomimetic Asymmetric Total Syntheses of Spirooliganones A and B. Org Lett 2014; 16:3740-3. [DOI: 10.1021/ol501593m] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Liyan Song
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Hongliang Yao
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Rongbiao Tong
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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29
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Viglianisi C, Sinni A, Menichetti S. Copper-Mediated One-Pot Access to 2,3-Dihydrobenzo[b][1,4]oxathiines fromo,o′-Dihydroxydisulfides. HETEROATOM CHEMISTRY 2014. [DOI: 10.1002/hc.21159] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Caterina Viglianisi
- Department of Chemistry ‘Ugo Schiff,’ University of Florence; Via della Lastruccia 3-13; I-50019 Sesto Fiorentino Italy
| | - Aidona Sinni
- Department of Chemistry ‘Ugo Schiff,’ University of Florence; Via della Lastruccia 3-13; I-50019 Sesto Fiorentino Italy
| | - Stefano Menichetti
- Department of Chemistry ‘Ugo Schiff,’ University of Florence; Via della Lastruccia 3-13; I-50019 Sesto Fiorentino Italy
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30
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Singh MS, Nagaraju A, Anand N, Chowdhury S. ortho-Quinone methide (o-QM): a highly reactive, ephemeral and versatile intermediate in organic synthesis. RSC Adv 2014. [DOI: 10.1039/c4ra11444b] [Citation(s) in RCA: 183] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
In this critical review, we provide a comprehensive view of the chemistry of ortho-quinone methides as versatile reactive intermediates in organic synthesis.
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Affiliation(s)
- Maya Shankar Singh
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221 005, India
| | - Anugula Nagaraju
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221 005, India
| | - Namrata Anand
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221 005, India
| | - Sushobhan Chowdhury
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221 005, India
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31
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Synthesis and neuroprotective action of xyloketal derivatives in Parkinson's disease models. Mar Drugs 2013; 11:5159-89. [PMID: 24351912 PMCID: PMC3877910 DOI: 10.3390/md11125159] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 12/02/2013] [Accepted: 12/04/2013] [Indexed: 12/22/2022] Open
Abstract
Parkinson’s disease (PD) is the second most common neurodegenerative disease affecting people over age 55. Oxidative stress actively participates in the dopaminergic (DA) neuron degeneration of PD. Xyloketals are a series of natural compounds from marine mangrove fungus strain No. 2508 that have been reported to protect against neurotoxicity through their antioxidant properties. However, their protection versus 1-methyl-4-phenylpyridinium (MPP+)-induced neurotoxicity is only modest, and appropriate structural modifications are necessary to discover better candidates for treating PD. In this work, we designed and synthesized 39 novel xyloketal derivatives (1–39) in addition to the previously reported compound, xyloketal B. The neuroprotective activities of all 40 compounds were evaluated in vivo via respiratory burst assays and longevity-extending assays. During the zebrafish respiratory burst assay, compounds 1, 9, 23, 24, 36 and 39 strongly attenuated reactive oxygen species (ROS) generation at 50 μM. In the Caenorhabditis elegans longevity-extending assay, compounds 1, 8, 15, 16 and 36 significantly extended the survival rates (p < 0.005 vs. dimethyl sulfoxide (DMSO)). A total of 15 compounds were tested for the treatment of Parkinson’s disease using the MPP+-induced C. elegans model, and compounds 1 and 8 exhibited the highest activities (p < 0.005 vs. MPP+). In the MPP+-induced C57BL/6 mouse PD model, 40 mg/kg of 1 and 8 protected against MPP+-induced dopaminergic neurodegeneration and increased the number of DA neurons from 53% for the MPP+ group to 78% and 74%, respectively (p < 0.001 vs. MPP+ group). Thus, these derivatives are novel candidates for the treatment of PD.
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32
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Wang W, Zheng Z, Wang X, Chen J. Generation and Conjugate Additions ofo-Quinone Methides Under Mild Base Conditions: Rapid Synthesis ofN-Substituted Aryl Glycine Derivatives. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Chen MW, Cao LL, Ye ZS, Jiang GF, Zhou YG. A mild method for generation of o-quinone methides under basic conditions. The facile synthesis of trans-2,3-dihydrobenzofurans. Chem Commun (Camb) 2013; 49:1660-2. [PMID: 23340596 DOI: 10.1039/c3cc37800d] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and efficient method for the generation of o-quinone methide intermediates was developed from the readily available 2-tosylalkylphenols under the mild basic conditions, and their reactions with sulfur ylides were investigated for the stereoselective synthesis of trans-2,3-dihydrobenzofurans.
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Affiliation(s)
- Mu-Wang Chen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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34
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Spence JTJ, George JH. Biomimetic Total Synthesis of ent-Penilactone A and Penilactone B. Org Lett 2013; 15:3891-3. [DOI: 10.1021/ol4017832] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Justin T. J. Spence
- School of Chemistry and Physics, University of Adelaide, Adelaide, SA 5005, Australia
| | - Jonathan H. George
- School of Chemistry and Physics, University of Adelaide, Adelaide, SA 5005, Australia
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35
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Panda B, Sarkar TK. Gold catalysis: regio- and stereoselective total synthesis of xyloketals D and G and the related natural product alboatrin. J Org Chem 2013; 78:2413-21. [PMID: 23428314 DOI: 10.1021/jo302545n] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A new and efficient one-pot desilylation-gold-catalyzed cycloisomerization of alkynes containing a silyl-protected phenolic -OH and a free alcoholic -OH unit leads selectively to the formation of tetrahydrofuranobenzopyran ring system. This approach has been used for the regio- and stereoselective synthesis of xyloketal D, xyloketal G, and the related natural product alboatrin.
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Affiliation(s)
- Biswajit Panda
- Department of Chemistry, Indian Institute of Technology, Kharagpur-721302, India
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36
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Gharpure SJ, Sathiyanarayanan AM, Vuram PK. Hetero Diels–Alder reaction of olefin with o-quinone methides generated using (±)-binolphosphoric acid for the stereoselective synthesis of 2,4-diarylbenzopyrans: application to the formal synthesis of myristinin B/C. RSC Adv 2013. [DOI: 10.1039/c3ra43526a] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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37
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38
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Li X, Xue J, Huang C, Li Y. Copper(I)-Catalyzed Hydroalkoxylation/Hydrogen-Bonding-Induced Asymmetric Hetero-Diels-Alder Cycloaddition Cascade: An Approach to Aromatic Spiroketals. Chem Asian J 2012; 7:903-6. [DOI: 10.1002/asia.201101056] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Indexed: 11/10/2022]
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39
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Di Antonio M, Rodriguez R, Balasubramanian S. Experimental approaches to identify cellular G-quadruplex structures and functions. Methods 2012; 57:84-92. [PMID: 22343041 PMCID: PMC3563962 DOI: 10.1016/j.ymeth.2012.01.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 01/27/2012] [Accepted: 01/29/2012] [Indexed: 12/27/2022] Open
Abstract
Guanine-rich nucleic acids can fold into non-canonical DNA secondary structures called G-quadruplexes. The formation of these structures can interfere with the biology that is crucial to sustain cellular homeostases and metabolism via mechanisms that include transcription, translation, splicing, telomere maintenance and DNA recombination. Thus, due to their implication in several biological processes and possible role promoting genomic instability, G-quadruplex forming sequences have emerged as potential therapeutic targets. There has been a growing interest in the development of synthetic molecules and biomolecules for sensing G-quadruplex structures in cellular DNA. In this review, we summarise and discuss recent methods developed for cellular imaging of G-quadruplexes, and the application of experimental genomic approaches to detect G-quadruplexes throughout genomic DNA. In particular, we will discuss the use of engineered small molecules and natural proteins to enable pull-down, ChIP-Seq, ChIP-chip and fluorescence imaging of G-quadruplex structures in cellular DNA.
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Affiliation(s)
- Marco Di Antonio
- University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, UK
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40
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Viglianisi C, Simone L, Menichetti S. Copper‐Mediated One‐Pot Transformation of 2‐N‐Sulfonyl‐ aminoaryl Diselenides into Benzo[b][1,4]selenazines. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100587] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Caterina Viglianisi
- Dipartimento di Chimica “U. Schiff”, Polo Scientifico e Tecnologico Università di Firenze, Via della Lastruccia, 3‐13, 50019 Sesto Fiorentino, Italy, Fax. (+39)‐055‐457‐3531
| | - Lavinia Simone
- Dipartimento di Chimica “U. Schiff”, Polo Scientifico e Tecnologico Università di Firenze, Via della Lastruccia, 3‐13, 50019 Sesto Fiorentino, Italy, Fax. (+39)‐055‐457‐3531
| | - Stefano Menichetti
- Dipartimento di Chimica “U. Schiff”, Polo Scientifico e Tecnologico Università di Firenze, Via della Lastruccia, 3‐13, 50019 Sesto Fiorentino, Italy, Fax. (+39)‐055‐457‐3531
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41
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Shaikh AK, Cobb AJA, Varvounis G. Mild and rapid method for the generation of ortho-(naphtho)quinone methide intermediates. Org Lett 2012; 14:584-7. [PMID: 22233235 DOI: 10.1021/ol203196n] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A new mild method has been devised for generating o-(naphtho)quinone methides via fluoride-induced desilylation of silyl derivatives of o-hydroxybenzyl(or 1-naphthylmethyl) nitrate. The reactive o-(naphtho)quinone methide intermediates were trapped by C, O, N, and S nucleophiles and underwent "inverse electron-demand" hetero-Diels-Alder reaction with dienophiles to give stable adducts. The method has useful potential application in natural product synthesis and drug research.
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Affiliation(s)
- Abdul kadar Shaikh
- Department of Chemistry, University of Ioannina, Section of Organic Chemistry and Biochemistry, 451 10 Ioannina, Greece
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42
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Kumar A, Kumar M, Gupta MK, Gupta LP. A catalyst-free C–H hydroarylation of coumarin derived ortho-quinone methide (o-QM) with electron rich arenes in glycerol. RSC Adv 2012. [DOI: 10.1039/c2ra21056h] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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43
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Radomkit S, Sarnpitak P, Tummatorn J, Batsomboon P, Ruchirawat S, Ploypradith P. Pt(IV)-catalyzed generation and [4+2]-cycloaddition reactions of o-quinone methides. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.03.059] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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44
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Zirconium-catalyzed Nagata reaction for the synthesis of 2-aryl-1,3,2-aryldioxaborins via a mild three-component condensation of phenols, aldehydes, and boronic acid. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.06.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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45
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Tummatorn J, Ruchirawat S, Ploypradith P. A Convergent General Strategy for the Functionalized 2-Aryl Cycloalkyl-Fused Chromans: Intramolecular Hetero-Diels-Alder Reactions ofortho-Quinone Methides. Chemistry 2010; 16:1445-8. [DOI: 10.1002/chem.200902403] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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46
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Kumar A, Rao MS, Rao VK. Sodium Dodecyl Sulfate-assisted Synthesis of 1-(Benzothiazolylamino)methyl-2-naphthols in Water. Aust J Chem 2010. [DOI: 10.1071/ch10209] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An efficient synthesis of 1‐(benzothiazolylamino)methyl‐2‐naphthols has been developed in water by one‐pot condensation of 2‐naphthol, aldehydes and 2‐aminobenzothiazole catalyzed by sodium dodecyl sulfate. Advantages of the methodology include a very short reaction time, excellent yields and catalytic use of the sodium dodecyl sulfate.
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47
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Ferreira SB, da Silva FDC, Pinto AC, Gonzaga DTG, Ferreira VF. Syntheses of chromenes and chromanesvia o-quinone methide intermediates. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.232] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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48
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Batsomboon P, Phakhodee W, Ruchirawat S, Ploypradith P. Generation of ortho-Quinone Methides by p-TsOH on Silica and Their Hetero-Diels−Alder Reactions with Styrenes. J Org Chem 2009; 74:4009-12. [DOI: 10.1021/jo900504y] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paratchata Batsomboon
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Program in Chemical Biology, Chulabhorn Graduate Institute, Vipavadee-Rangsit Highway, Bangkok, Thailand 10210, and Program on Research and Development of Synthetic Drugs, Institute of Science and Technology for Research and Development, Mahidol University, Salaya Campus, Nakhon Pathom, Thailand
| | - Wong Phakhodee
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Program in Chemical Biology, Chulabhorn Graduate Institute, Vipavadee-Rangsit Highway, Bangkok, Thailand 10210, and Program on Research and Development of Synthetic Drugs, Institute of Science and Technology for Research and Development, Mahidol University, Salaya Campus, Nakhon Pathom, Thailand
| | - Somsak Ruchirawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Program in Chemical Biology, Chulabhorn Graduate Institute, Vipavadee-Rangsit Highway, Bangkok, Thailand 10210, and Program on Research and Development of Synthetic Drugs, Institute of Science and Technology for Research and Development, Mahidol University, Salaya Campus, Nakhon Pathom, Thailand
| | - Poonsakdi Ploypradith
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Program in Chemical Biology, Chulabhorn Graduate Institute, Vipavadee-Rangsit Highway, Bangkok, Thailand 10210, and Program on Research and Development of Synthetic Drugs, Institute of Science and Technology for Research and Development, Mahidol University, Salaya Campus, Nakhon Pathom, Thailand
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49
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Kumbaraci V, Ergunes D, Midilli M, Begen S, Talinli N. Investigation on the reactions ofo-hydroxybenzyl alcohols with vinyl ethers under acidic and/or thermal conditions. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.74] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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50
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Bray CD. Generation and hetero-Diels-Alder reactions of an o-quinone methide under mild, anionic conditions: rapid synthesis of mono-benzannelated spiroketals. Org Biomol Chem 2008; 6:2815-9. [PMID: 18633540 DOI: 10.1039/b806593d] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deprotonation of o-hydroxybenzyl acetate with (i)PrMgCl provides a method of generating an o-quinone methide under mild, anionic conditions, such that highly sensitive exo-enol ethers can be employed as 2pi partners in hetero-Diels-Alder reactions. This process results in mono-benzannelated spiroketals such as those found in the natural products berkelic acid, the chaetoquadrins or cephalostatin 6.
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Affiliation(s)
- Christopher D Bray
- School of Biological and Chemical Sciences, The Walter Besant Building, Queen Mary, University of London, London, UK.
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