51
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Tricyclic Quinazoline Alkaloids: Isolation, Synthesis, Chemical Modification, and Biological Activity. Chem Nat Compd 2014. [DOI: 10.1007/s10600-014-1086-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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52
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Reddy BS, Majumder N, Sridhar B. Au(I)/Ag(I)-catalyzed annulation of sugar aldehyde tethered with 3-phenylprop-2-yn-1-yl ether with aryl amines for the pyrano[4,3-b]quinoline derivatives. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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53
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54
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Domingo LR, Aurell MJ, Sáez JA, Mekelleche SM. Understanding the mechanism of the Povarov reaction. A DFT study. RSC Adv 2014. [DOI: 10.1039/c4ra02916j] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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55
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McNulty J, Vemula R, Bordón C, Yolken R, Jones-Brando L. Synthesis and anti-toxoplasmosis activity of 4-arylquinoline-2-carboxylate derivatives. Org Biomol Chem 2014; 12:255-60. [DOI: 10.1039/c3ob41539b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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56
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Chai H, Li J, Yang L, Lu H, Qi Z, Shi D. Copper-catalyzed tandem N-arylation/condensation: synthesis of quinazolin-4(3H)-ones from 2-halobenzonitriles and amides. RSC Adv 2014. [DOI: 10.1039/c4ra08031a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel, straightforward and practical copper-catalyzed domino protocol for synthesis of quinazolin-4(3H)-one derivatives from commercially available 2-halobenzonitriles and amides was successfully developed.
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Affiliation(s)
- Hongxin Chai
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081, China
| | - Jiarong Li
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081, China
| | - Liupan Yang
- Jiangsu Hengrui Medicine Co., Ltd
- Lianyungang Eco & Tech Development Zone
- , China
| | - Hongyan Lu
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081, China
| | - Zhang Qi
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081, China
| | - Daxin Shi
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081, China
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57
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Zhang J, Proulx C, Tomberg A, Lubell WD. Multicomponent Diversity-Oriented Synthesis of Aza-Lysine-Peptide Mimics. Org Lett 2013; 16:298-301. [DOI: 10.1021/ol403297v] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jinqiang Zhang
- Département de Chimie, Université de Montréal, C.P.
6128, Succursale Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Caroline Proulx
- Département de Chimie, Université de Montréal, C.P.
6128, Succursale Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Anna Tomberg
- Département de Chimie, Université de Montréal, C.P.
6128, Succursale Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - William D. Lubell
- Département de Chimie, Université de Montréal, C.P.
6128, Succursale Centre-Ville, Montréal, Québec H3C 3J7, Canada
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58
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Chen M, Sun N, Liu Y. Environmentally Benign Synthesis of Indeno[1,2-b]quinolines via an Intramolecular Povarov Reaction. Org Lett 2013; 15:5574-7. [DOI: 10.1021/ol402775k] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ming Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Ning Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
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59
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Li L, Zhang Q, Liu B, Liu G. A Novel Multi-Component Reaction to Imidazo[4,5-g]-quinazolines. Molecules 2013; 18:5697-705. [PMID: 23681055 PMCID: PMC6269788 DOI: 10.3390/molecules18055697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 05/08/2013] [Accepted: 05/10/2013] [Indexed: 11/16/2022] Open
Abstract
The trace impurities discovered after extended storage of a 5-amino- benzimidazole library were determined as imidazo[4,5-g]quinazoline derivatives by extensive spectroscopic data analysis. The formation of this highly aromatic heterocyclic ring involved a novel multi-component reaction, using which several novel compounds were prepared. Its mechanism was deduced as a cascade of chemical transformations, including the formation of a Schiff’s base, intramolecular hetero-Diels-Alder reaction, defluorination and dehydrogenation.
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Affiliation(s)
- Li Li
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China.
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60
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Taylor RRR, Batey RA. A Hetero Diels–Alder Approach to the Synthesis of Chromans (3,4-Dihydrobenzopyrans) Using Oxonium Ion Chemistry: The Oxa-Povarov Reaction. J Org Chem 2013; 78:1404-20. [DOI: 10.1021/jo302328s] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Rivka R. R. Taylor
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto,
ON, Canada, M5S 3H6
| | - Robert A. Batey
- Davenport Research Laboratories,
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto,
ON, Canada, M5S 3H6
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61
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Tummatorn J, Thongsornkleeb C, Ruchirawat S, Gettongsong T. Synthesis of 2,4-unsubstituted quinoline-3-carboxylic acid ethyl esters from arylmethyl azides via a domino process. Org Biomol Chem 2013; 11:1463-7. [DOI: 10.1039/c3ob27493d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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62
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Zhu YP, Fei Z, Liu MC, Jia FC, Wu AX. Direct one-pot synthesis of luotonin F and analogues via rational logical design. Org Lett 2012; 15:378-81. [PMID: 23273132 DOI: 10.1021/ol303331g] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient one-pot synthetic protocol has been proposed for the synthesis of luntonin F from easily available starting materials. Through a rational logical design, multifundamental reactions (iodination, Kornblum oxidation, and annulation) were assembled in one-pot. The developed approach can efficiently synthesize luntonin F and a diversity of analogues.
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Affiliation(s)
- Yan-ping Zhu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, PR China
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63
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Lee S, Lee J, Jahng Y, Jeong TC, Kim DH. Characterization ofin vitrometabolites of luotonin A in human liver microsomes using electrospray/tandem mass spectrometry. Xenobiotica 2012; 43:527-33. [DOI: 10.3109/00498254.2012.746486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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64
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Ramesh S, Nagarajan R. A Formal Synthesis of Lavendamycin Methyl Ester, Nitramarine, and Their Analogues: A Povarov Approach. J Org Chem 2012; 78:545-58. [DOI: 10.1021/jo302389s] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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65
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Haider N, Nuß S. Weinreb amidation as the cornerstone of an improved synthetic route to A-ring-modified derivatives of luotonin A. Molecules 2012; 17:11363-78. [PMID: 23011278 PMCID: PMC6268516 DOI: 10.3390/molecules171011363] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 09/14/2012] [Accepted: 09/18/2012] [Indexed: 11/17/2022] Open
Abstract
Weinreb amidation of ethyl 4-oxo-3,4-dihydroquinazoline-2-carboxylate with aromatic amines provides a significantly improved route to anilide-type key intermediates for the synthesis of the anticancer alkaloid, luotonin A, and new A-ring-modified derivatives thereof. This method has advantages concerning overall yield, brevity, and versatility with regard to the aromatic amine component, even if the latter has less favourable nucleophilicity, solubility and/or stability properties. This is demonstrated by the concise synthesis of a small library of luotonin A analogues, including a novel thiophene isostere of the alkaloid.
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Affiliation(s)
- Norbert Haider
- Department of Drug and Natural Product Synthesis, Faculty of Life Sciences, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria.
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66
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67
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Guggenheim KG, Toru H, Kurth MJ. One-pot, two-step cascade synthesis of quinazolinotriazolobenzodiazepines. Org Lett 2012; 14:3732-5. [PMID: 22746550 DOI: 10.1021/ol301592z] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An operationally simple, one-pot, two-step cascade method has been developed to afford quinazolino[1,2,3]triazolo[1,4]benzodiazepines. This unique, atom-economical transformation engages five reactive centers (amide, aniline, carbonyl, azide, and alkyne) and employs environmentally benign iodine as a catalyst. The method proceeds via sequential quinazolinone-forming condensation and intramolecular azide-alkyne 1,3-dipolar cycloaddition reactions. Substrate scope, multicomponent examples, and mechanistic insights are discussed.
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Affiliation(s)
- Kathryn G Guggenheim
- Department of Chemistry, University of California , One Shields Avenue, Davis, California 95616, United States
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68
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Suresh R, Muthusubramanian S, Senthilkumaran R, Manickam G. SnCl2-Catalyzed Selective Atom Economic Imino Diels–Alder Reaction: Synthesis of 2-(1H-Pyrrolo[2,3-b]pyridin-3-yl)quinolines. J Org Chem 2012; 77:1468-76. [DOI: 10.1021/jo202256z] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rajendran Suresh
- Department of Organic Chemistry,
School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, India
- Syngene International Limited, Biocon, Bangalore, 560 099, India
| | - Shanmugam Muthusubramanian
- Department of Organic Chemistry,
School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, India
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69
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Affiliation(s)
- Shanbao Yu
- Institute
of Drug Discovery and Development, iAIR, and ‡Department of Chemistry, East China Normal University, Shanghai
200062, China
| | - Qing-Qing Huang
- Institute
of Drug Discovery and Development, iAIR, and ‡Department of Chemistry, East China Normal University, Shanghai
200062, China
| | - Yu Luo
- Institute
of Drug Discovery and Development, iAIR, and ‡Department of Chemistry, East China Normal University, Shanghai
200062, China
| | - Wei Lu
- Institute
of Drug Discovery and Development, iAIR, and ‡Department of Chemistry, East China Normal University, Shanghai
200062, China
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70
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Potewar TM, Kathiravan MK, Chothe AS, Srinivasan KV. An improved synthesis of the alkaloid Luotonin-A employing ionic liquid and water as key solvents. ACTA ACUST UNITED AC 2011. [DOI: 10.5155/eurjchem.2.2.235-237.205] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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71
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Liang JL, Cha HC, Jahng Y. Recent advances in the studies on luotonins. Molecules 2011; 16:4861-83. [PMID: 21677601 PMCID: PMC6264391 DOI: 10.3390/molecules16064861] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Revised: 06/08/2011] [Accepted: 06/10/2011] [Indexed: 01/18/2023] Open
Abstract
Luotonins are alkaloids from the aerial parts of Peganum nigellastrum Bunge. that display three major skeleton types. Luotonins A, B, and E are pyrroloquinazolino-quinoline alkaloids, luotonins C and D are canthin-6-one alkaloids, and luotonin F is a 4(3H)-quinazolinone alkaloid. All six luotonins have shown promising cytotoxicities towards selected human cancer cell lines, especially against leukemia P-388 cells. Luotonin A is the most active one, with its activity stemming from topoisomerase I-dependent DNA-cleavage. Such intriguing biological activities and unique structures have led not only to the development of synthetic methods for the efficient synthesis of these compounds, but also to interest in structural modifications for improving the biological properties. Recent progress in the study of luotonins is covered.
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Affiliation(s)
| | | | - Yurngdong Jahng
- Author to whom correspondence should be addressed; ; Tel.: +1-82-53-810-2821; Fax: +1-53-810-4654
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72
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Palacios F, Alonso C, Fuertes M, Ezpeleta JM, Rubiales G. Glyoxalate-Derived Aldimines in Cycloaddition Reactions with Olefins. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100395] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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73
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Tseng MC, Chu YW, Tsai HP, Lin CM, Hwang J, Chu YH. One-pot synthesis of luotonin A and its analogues. Org Lett 2011; 13:920-3. [PMID: 21268635 DOI: 10.1021/ol1029707] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Starting with inexpensive reagents, a self-directed chemical process with the aid of a single metal triflate was readily achieved to concomitantly construct quinazoline and pyrroloquinoline cores to afford the synthesis of luotonin A and its analogues. Among all compounds prepared, 2c, 2d, and 3b exhibit more potent inhibitory activity than luotonin A against human topoisomerase I.
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Affiliation(s)
- Ming-Chung Tseng
- Department of Chemistry and Biochemistry, National Chung Cheng University, Minhsiung, Chiayi, Taiwan, ROC
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74
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Kudale AA, Miller DO, Dawe LN, Bodwell GJ. Intramolecular Povarov reactions involving 3-aminocoumarins. Org Biomol Chem 2011; 9:7196-206. [DOI: 10.1039/c1ob05867c] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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75
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Palacios F, Alonso C, Arrieta A, Cossío FP, Ezpeleta JM, Fuertes M, Rubiales G. Lewis Acid Activated Aza-Diels-Alder Reaction ofN-(3-Pyridyl)aldimines: An Experimental and Computational Study. European J Org Chem 2010. [DOI: 10.1002/ejoc.200901325] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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76
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Burai R, Ramesh C, Shorty M, Curpan R, Bologa C, Sklar LA, Oprea T, Prossnitz ER, Arterburn JB. Highly efficient synthesis and characterization of the GPR30-selective agonist G-1 and related tetrahydroquinoline analogs. Org Biomol Chem 2010; 8:2252-9. [PMID: 20401403 DOI: 10.1039/c001307b] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The GPR30 agonist probe G-1 and structural analogs were efficiently synthesized using multicomponent or stepwise Sc(III)-catalyzed aza-Diels-Alder cyclization. Optimization of solvent and reaction temperature provided enhanced endo-diastereoselectivity.
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Affiliation(s)
- Ritwik Burai
- Department of Chemistry and Biochemistry MSC 3C, New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA
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77
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Yu S, Luo Y, Liu H, Liu H, Lu W. Synthesis of the DE synthon of racemic camptothecin. MONATSHEFTE FUR CHEMIE 2010. [DOI: 10.1007/s00706-009-0245-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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78
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79
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Desrat S, van de Weghe P. Intramolecular Imino Diels−Alder Reaction: Progress toward the Synthesis of Uncialamycin. J Org Chem 2009; 74:6728-34. [DOI: 10.1021/jo901291t] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sandy Desrat
- EA Substances Lichéniques et Photoprotection, Faculté des Sciences Biologiques et Pharmaceutiques, Université de Rennes 1, 2 avenue du Prof Léon Bernard, F-35043 Rennes Cedex, France
| | - Pierre van de Weghe
- EA Substances Lichéniques et Photoprotection, Faculté des Sciences Biologiques et Pharmaceutiques, Université de Rennes 1, 2 avenue du Prof Léon Bernard, F-35043 Rennes Cedex, France
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80
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Huang H, Jiang H, Chen K, Liu H. A Simple and Convenient Copper-Catalyzed Tandem Synthesis of Quinoline-2-carboxylates at Room Temperature. J Org Chem 2009; 74:5476-80. [DOI: 10.1021/jo901101v] [Citation(s) in RCA: 117] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- He Huang
- Drug Discovery and Design Centre, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, and Graduate School, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Hualiang Jiang
- Drug Discovery and Design Centre, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, and Graduate School, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Kaixian Chen
- Drug Discovery and Design Centre, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, and Graduate School, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Hong Liu
- Drug Discovery and Design Centre, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, and Graduate School, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
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81
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Kouznetsov VV. Recent synthetic developments in a powerful imino Diels–Alder reaction (Povarov reaction): application to the synthesis of N-polyheterocycles and related alkaloids. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.12.059] [Citation(s) in RCA: 455] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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82
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Shaw JT. Naturally diverse: highlights in versatile synthetic methods enabling target- and diversity-oriented synthesis. Nat Prod Rep 2009; 26:11-26. [DOI: 10.1039/b814468k] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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83
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Khoshkholgh MJ, Balalaie S, Gleiter R, Rominger F. Intramolecular hetero-Diels–Alder reaction of 1-oxa-1,3-butadienes with terminal acetylenes in aqueous media using CuI. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.08.056] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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84
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85
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Kudale AA, Kendall J, Miller DO, Collins JL, Bodwell GJ. Povarov reactions involving 3-aminocoumarins: synthesis of 1,2,3,4-tetrahydropyrido[2,3-c]coumarins and pyrido[2,3-c]coumarins. J Org Chem 2008; 73:8437-47. [PMID: 18821803 DOI: 10.1021/jo801411p] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Condensation of 3-aminocoumarin (5) with 4-nitrobenzaldehyde (8) afforded a 2-azadiene (9), which reacted with various electron-rich alkenes (10 examples) in the presence of Yb(OTf)3 to afford 1,2,3,4-tetrahydropyrido[2,3-c]coumarins. Yields were generally good, but the diastereomeric ratios were highly variable. The products arose through a formal [4 + 2] cycloaddition (inverse electron demand Diels-Alder reaction) followed by tautomerization. As such, these are examples of the Povarov reaction. A range of 1,2,3,4-tetrahydropyrido[2,3-c]coumarins was then synthesized using a three-component version of this reaction, which involves in situ formation of the 2-azadiene component. Some of these products were converted into the corresponding pyrido[2,3-c]coumarins upon treatment with various oxidants, the most effective of which proved to be nitrous gases.
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Affiliation(s)
- Amit A Kudale
- Department of Chemistry, Memorial University, St. John's, NL, Canada A1B 3X7
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86
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Bubenyák M, Pálfi M, Takács M, Béni S, Szökő É, Noszál B, Kökösi J. Synthesis of hybrids between the alkaloids rutaecarpine and luotonins A, B. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.05.141] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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87
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Iafe RG, Houk KN. Intramolecular Hetero-Diels−Alder Reactions of Imine and Iminium Dienophiles: Quantum Mechanical Exploration of Mechanisms and Stereoselectivities. J Org Chem 2008; 73:2679-86. [DOI: 10.1021/jo702576r] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Robert G. Iafe
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095-1569
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095-1569
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88
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Isambert N, Cruz M, Arévalo MJ, Gómez E, Lavilla R. Enol Esters: Versatile Substrates for Mannich-Type Multicomponent Reactions. Org Lett 2007; 9:4199-202. [PMID: 17867693 DOI: 10.1021/ol701717z] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The interaction of cyclic enol esters with diversely substituted anilines and ethyl glyoxalate yields, under Sc(OTf)3 catalysis, disubstituted N-aryl lactams in a multicomponent reaction. The protocol allows access to the trans stereoisomers after an epimerization of the initial mixture in which the cis isomers predominate. Vinyl acetate yields quinoline derivatives, whereas isopropenyl acetate leads to the corresponding Mannich adducts.
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Affiliation(s)
- Nicolas Isambert
- Institute for Research in Biomedicine, Barcelona Science Park, Josep Samitier 1-5, 08028 Barcelona, Spain
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89
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Dai W, Petersen JL, Wang KK. Synthesis of the parent and substituted tetracyclic ABCD ring cores of camptothecins via 1-(3-aryl-2-propynyl)- 1,6-dihydro-6-oxo-2-pyridinecarbonitriles. Org Lett 2007; 8:4665-7. [PMID: 16986976 DOI: 10.1021/ol0620242] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new synthetic pathway to the parent and substituted ABCD ring cores of the camptothecin family of alkaloids was developed. The N-alkylation of 1,6-dihydro-6-oxo-2-pyridinecarbonitrile (2) with 3-bromo-1-phenylpropyne provided 3a using Curran's protocol. Treatment of 3a with a catalytic amount of DBU (5 mol %) at 110 degrees C for 12 h produced indolizino[1,2-b]quinolin-9(11H)-one (6a), the parent ABCD ring core of camptothecin, in essentially quantitative yield.
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Affiliation(s)
- Weixiang Dai
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506-6045, USA
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90
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Nacro K, Zha CC, Guzzo PR, Jason Herr R, Peace D, Friedrich TD. Synthesis and topoisomerase poisoning activity of A-ring and E-ring substituted luotonin A derivatives. Bioorg Med Chem 2007; 15:4237-46. [PMID: 17418582 DOI: 10.1016/j.bmc.2007.03.067] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2007] [Revised: 03/19/2007] [Accepted: 03/20/2007] [Indexed: 01/18/2023]
Abstract
A series of A-ring and E-ring analogues of the natural product luotonin A, a known topoisomerase I poison, was evaluated for growth inhibition in human carcinoma and leukemia cell lines. Rational design of structures was based on analogues of the related alkaloid camptothecin, which has been demonstrated to exert cytotoxic effects by the same mechanism of action. When compared to luotonin A, several compounds exhibited an improved topoisomerase I-dependent growth inhibition of a human leukemia cell line.
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Affiliation(s)
- Kassoum Nacro
- Discovery Research & Development, Albany Molecular Research Inc., Albany, NY 12213-5098, USA
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91
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Zhao YL, Zhang W, Wang S, Liu Q. Ethynyl Ketene-S,S-acetals: The Highly Reactive Electron-Rich Dienophiles and Applications in the Synthesis of 4-Functionalized Quinolines via a One-Pot Three-Component Reaction. J Org Chem 2007; 72:4985-8. [PMID: 17523657 DOI: 10.1021/jo070069q] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient synthetic method for 4-functionalized quinoline derivatives, 4-((1,3-dithian-2-ylidene)methyl)quinolines, has been developed. Mediated by trifluoromethanesulfonic acid, ethynyl ketene-S,S-acetals can react in a one-pot procedure with various arylamines and aldehydes under mild conditions to give the corresponding quinoline derivatives in good to high yields via a consecutive arylimine formation, regiospecific aza-Diels-Alder (Povarov) reaction, and reductive amination.
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Affiliation(s)
- Yu-Long Zhao
- Department of Chemistry, Northeast Normal University, Changchun, 130024, People's Republic of China.
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92
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Zhou YL, Jia XD, Li R, Han B, Wu LM. Synthesis of Furano[3,2-c]- and Pyrano[3,2-c]quinolines upon Imino Diels-Alder Reactions Initiated by Nitrosonium (NO+). CHINESE J CHEM 2007. [DOI: 10.1002/cjoc.200790081] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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93
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Bowman WR, Elsegood MRJ, Stein T, Weaver GW. Radical reactions with 3H-quinazolin-4-ones: synthesis of deoxyvasicinone, mackinazolinone, luotonin A, rutaecarpine and tryptanthrin. Org Biomol Chem 2007; 5:103-13. [PMID: 17164913 DOI: 10.1039/b614075k] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alkyl, aryl, heteroaryl and acyl radicals have been cyclised onto the 2-position of 3H-quinazolin-4-one. The side chains containing the radical precursors were attached to the nitrogen atom in the 3-position. The cyclisations take place by aromatic homolytic substitution hence retain the aromaticity of the 3H-quinazolin-4-one ring. The highest yields were obtained using hexamethylditin to facilitate cyclisation rather than reduction without cyclisation. The alkaloids deoxyvasicinone , mackinazolinone , tryptanthrin , luotonin A and rutaecarpine were synthesised by radical cyclisation onto 3H-quinazolin-4-one.
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Affiliation(s)
- W Russell Bowman
- Department of Chemistry, Loughborough University, Loughborough, Leics, UK
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94
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Abstract
A new and concise synthesis of luotonin A was achieved from the previously described compounds ethyl 4-oxo-3,4-dihydroquinazoline-2-carboxylate and 1-(2-nitrophenyl)prop-2-en-1-one. New 14-substituted luotonin A analogues were prepared using 14-chloroluotonin A as the key intermediate.
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Affiliation(s)
- Jeffrey J Mason
- Unit for Organic Chemistry, Department of Biosciences and Nutrition, Karolinska Institute, SE-14157 Huddinge, Sweden
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95
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Abstract
This review covers the isolation, structure determination, synthesis and biological activity of quinoline, quinazoline and acridone alkaloids from plant, microbial and animal sources: 134 references are cited.
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Affiliation(s)
- Joseph P Michael
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Wits 2050, South Africa.
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96
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Mhaske SB, Argade NP. The chemistry of recently isolated naturally occurring quinazolinone alkaloids. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.07.098] [Citation(s) in RCA: 453] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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97
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Takao KI, Munakata R, Tadano KI. Recent advances in natural product synthesis by using intramolecular Diels-Alder reactions. Chem Rev 2006; 105:4779-807. [PMID: 16351062 DOI: 10.1021/cr040632u] [Citation(s) in RCA: 535] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ken-Ichi Takao
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Japan
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98
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Jahng Y, Seok Lee E, Gyu Park J, Ill Kim S. Synthesis and Properties of Luotonin A Homologues and Their Aza-analogues. HETEROCYCLES 2006. [DOI: 10.3987/com-05-10552] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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99
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Zhou Y, Jia X, Li R, Liu Z, Liu Z, Wu L. Nitrosonium (NO+) initiated and cation radical-mediated imino Diels–Alder reaction. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.10.083] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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100
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