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Gummidi L, Muddassar A, Sharma GVM, Murugesh V, Suresh S. Tandem aza-Michael addition-vinylogous aldol condensation: synthesis of N-bridged pyridine fused quinolones. Org Biomol Chem 2022; 20:773-777. [PMID: 34991153 DOI: 10.1039/d1ob02087k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Herein, we present a tandem aza-Michael addition-vinylogous aldol condensation strategy for the synthesis of N-bridged pyridine fused quinolone derivatives from quinolones and ynones. The presented tandem transformation features the construction of C-N and CC bonds in a single operation, under transition metal-free conditions. The wide substrate scope and gram scale synthesis of pyridine fused quinolone derivatives expand the synthetic value of the presented protocol.
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Affiliation(s)
- Lalitha Gummidi
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
| | - Altaf Muddassar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
| | - Gangavaram V M Sharma
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
| | - V Murugesh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Surisetti Suresh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
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2
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Substituent effect on di-π-methane reactions of benzopyrazinobarrelenes and benzoquinoxalinobarrelenes. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.01.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Wang X, Zhang W, Shen H, Zhang W. One-Pot Synthesis of Pyrrolo[1,2- a]quinolin-1-ones by the Cyclocondensation of 5-Hydroxy-1-arylpyrrolidin-2-ones with Dicarbonyls. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xuerui Wang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou; 730000; China
| | - Wenxue Zhang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou; 730000; China
| | - Hongjuan Shen
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou; 730000; China
| | - Wei Zhang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou; 730000; China
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Goel A, Singh SP, Kumar A, Kant R, Maulik PR. Unprecedented Bridged Annulation Approach to the Construction of 5,6-Dihydro-4H-benzo[kl]acridines. Org Lett 2009; 11:5122-5. [DOI: 10.1021/ol901916p] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Atul Goel
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Salil Pratap Singh
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Amit Kumar
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Ruchir Kant
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Prakas R. Maulik
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology Central Drug Research Institute, CSIR, Lucknow 226001, India
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5
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Affiliation(s)
- Junjie Chen
- a School of Chemistry, La Trobe University , Bundoora, Victoria, 3083, Australia
| | - Leslie W. Deady
- a School of Chemistry, La Trobe University , Bundoora, Victoria, 3083, Australia
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6
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Wilson RM, Danishefsky SJ. Applications of total synthesis to problems in neurodegeneration: Fascinating chemistry along the way. Acc Chem Res 2006; 39:539-49. [PMID: 16906750 DOI: 10.1021/ar068018n] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The possibility for the application of organic synthesis to the discovery of new agents in combating neurodegenerative disorders is described. Our focus has been on agents derived from natural-product leads and natural products themselves prepared through total synthesis. Herein, we describe some of the chemistry as well as interesting observations made along the way.
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Affiliation(s)
- Rebecca M Wilson
- Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, USA
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7
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Hilal HS, Ali-Shtayeh MS, Arafat R, Al-Tel T, Voelter W, Barakat A. Synthesis of a new series of heterocyclic scaffolds for medicinal purposes. Eur J Med Chem 2006; 41:1017-24. [PMID: 16797790 DOI: 10.1016/j.ejmech.2006.03.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2005] [Revised: 03/11/2006] [Accepted: 03/16/2006] [Indexed: 10/24/2022]
Abstract
A new series of substituted 8-fluro-4H-pyrimido[2,1-b] [1,3]benzothiazole-4-ones () substituted 7-methyl-4H-isoxazolo[2,3-a]pyrimidin-4-ones, and substituted 2-methyl-5,6,7,8-tetrahydro-9H-isoxazolo[2,3-a]pyridopyrimidin-9-ones, compounds I-VII, have been prepared via condensation of beta-keto esters with 2-aminopyridine derivatives, in the presence of polyphosphoric acid. The same technique has also been used to prepare diazepine compounds, VIII-X, by condensation of a gamma-keto ester with 2-aminopyridine derivatives. Details of synthetic procedures are shown. The new compounds have been characterized by elemental analysis, GC-MS, FT-IR and NMR spectrometry. Antibacterial, antifungal and anticancer (cytotoxic) activities, for three of these compounds, have been investigated and are presented.
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Affiliation(s)
- H S Hilal
- College of Sciences, An-Najah N. University, PO Box 7, Nablus, Palestine.
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8
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Lion CJ, Vasselin DA, Schwalbe CH, Matthews CS, Stevens MFG, Westwell AD. Novel reaction products from the hypervalent iodine oxidation of hydroxylated stilbenes and isoflavones. Org Biomol Chem 2005; 3:3996-4001. [PMID: 16240020 DOI: 10.1039/b510240e] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel reaction pathways for the hypervalent iodine-mediated oxidation of bioactive phenols containing extended conjugated pi-systems are described. Oxidation of 4-hydroxystilbenes in methanol using a hypervalent iodine-based oxidant led to the formal 1,2-addition of methoxy groups across the central stilbene double bond. Treatment of the structurally related 4-hydroxyisoflavone with di(trifluoroacetoxy)iodobenzene leads to the surprising formation of 2,4'-dihydroxybenzil. Potential mechanisms for these new reaction pathways are discussed, and the X-ray crystal structure of 2,4'-dihydroxybenzil is presented. In contrast, oxidation of the corresponding 3-hydroxystilbenes and 3-hydroxyisoflavone led to conventional dienone oxidation products. The antitumour implications of these oxidation processes are briefly highlighted; the novel 4-substituted phenolic oxidation products were found to be inactive in terms of in vitro antitumour cellular activity, whereas the 3-substituted phenol products gave novel agents with potent and enhanced antitumour activity in the HCT 116 cancer cell line.
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Affiliation(s)
- Cedric J Lion
- Centre for Biomolecular Sciences, School of Pharmacy, University of Nottingham, UK
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Yoon K, Ha SM, Kim K. A Convenient Route to Diverse Heterocycles through an Addition of β-Amino Carbonyl Compounds to 3-Halogeno-4-methoxybenzynes. J Org Chem 2005; 70:5741-4. [PMID: 15989364 DOI: 10.1021/jo050420c] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] 3-Halogeno-4-methoxybenzynes 5 generated from 5-(3-halogeno-4-methoxyphenyl)thianthrenium perchlorates 1 and LDA in THF at reflux reacted with various beta-amino carbonyl compounds and 2-aminophenyl benzenesulfonate etc. to give diverse heterocyclic compounds.
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Affiliation(s)
- Kyongho Yoon
- School of Chemistry and Molecular Engineering, Seoul National University, Seoul 151-742, Korea
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Fused Heterocyclo-Quinolines Containing One Nitrogen Atom at Ring Junction: Part 1. Four and Five Membered Heterocyclo-Quinolines. ADVANCES IN HETEROCYCLIC CHEMISTRY 2003. [DOI: 10.1016/s0065-2725(03)84003-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Quideau S, Lebon M, Lamidey AM. Enantiospecific synthesis of the antituberculosis marine sponge metabolite (+)-puupehenone. The arenol oxidative activation route. Org Lett 2002; 4:3975-8. [PMID: 12599506 DOI: 10.1021/ol026855t] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[formula: see text] The total synthesis of the marine sesquiterpene quinone (+)-puupehenone, a promising new antituberculosis agent, was achieved in 10 steps starting from commercially available (+)-sclareolide. The key feature of this synthesis is the construction of the heterocycle via an intramolecular attack of the terpenoid-derived C-8 oxygen function onto an oxidatively activated 1,2-dihydroxyphenyl unit.
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Affiliation(s)
- Stéphane Quideau
- Laboratoire de Chimie des Substances Végétales, Centre de Recherche en Chimie Moléculaire, Université Bordeaux 1, 351 Cours de la Libération, F-33405 Talence, France.
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Pouységu L, Avellan AV, Quideau S. Iodine(III)-mediated generation of nitrogen-tethered orthoquinol acetates for the construction of oxygenated indole, quinoline, and phenanthridine alkaloid motifs. J Org Chem 2002; 67:3425-36. [PMID: 12003555 DOI: 10.1021/jo020010d] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Functionalized indole and quinoline derivatives are conveniently prepared from nitrogen-tethered 2-methoxyphenols via phenyliodine(III) diacetate mediated oxidative acetoxylation, followed by a fluoride- or base-induced intramolecular nucleophilic addition reaction. This regioselective Michael-type addition step is further discussed in view of the rearrangement of orthoquinol acetate intermediates into paraquinol acetates that is sometimes observed in situ. Application of this methodology to the synthesis of a functionalized phenanthridine, and its potential for the construction of polyoxygenated lycorine-type alkaloid skeleta are here described.
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Affiliation(s)
- Laurent Pouységu
- Laboratoire de Chimie des Substances Végétales, Centre de Recherche en Chimie Moléculaire, Université Bordeaux 1, 351 cours de la Libération, 33405 Talence Cedex, France
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Ayad F, Tilley L, Deady LW. Synthesis, antimalarial activity and inhibition of haem detoxification of novel bisquinolines. Bioorg Med Chem Lett 2001; 11:2075-7. [PMID: 11514142 DOI: 10.1016/s0960-894x(01)00383-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The synthesis of novel bisquinoline compounds comprising 4-(4-diethylamino-1-methylbutyl)aminoquinoline units joined through the 2-position by a (CH(2))(n) linker is described. Their ability to inhibit the growth of both chloroquine-sensitive (D10) and chloroquine-resistant (K1) strains of Plasmodium falciparum, the hydrogen peroxide-mediated pathway for decomposition of haem, and the conversion of haem to beta-haematin have been measured. The activity was affected by the length of the linker and the most active (6c, n=12) showed effects similar to chloroquine in three of the assays. However, it was even more active against the resistant strain [IC(50), 17 nM (K1); 43 nM (D10)], much superior to chloroquine (IC(50), 540 nM) and slightly better than mefloquine (IC(50), 30 nM) in this regard.
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Affiliation(s)
- F Ayad
- Department of Chemistry, La Trobe University, 3086, Victoria, Australia
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Tohma H, Takizawa S, Watanabe H, Fukuoka Y, Maegawa T, Kita Y. Hypervalent Iodine(V)-Induced Asymmetric Oxidation of Sulfides to Sulfoxides Mediated by Reversed Micelles: Novel Nonmetallic Catalytic System. J Org Chem 1999; 64:3519-3523. [PMID: 11674475 DOI: 10.1021/jo982295t] [Citation(s) in RCA: 115] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Although several types of chiral hypervalent iodine reagents have been used for asymmetric induction, all of them have needed more than a stoichiometric amount of chiral reagents and have shown low enantioselectivities. The described new catalytic asymmetric oxidation using a hypervalent iodine(V) reagent, iodoxybenzene (PhIO(2)), in a cationic reversed micellar system provides the first example of a catalytic asymmetric oxidation of sulfides to sulfoxides in high chemical yield with moderate to good enantioselectivity without the use of any transition-metal catalysts. The solubilization and activation of PhIO(2) by adding catalytic amounts of both cetyltrimethylammonium bromide (CTAB) and a chiral tartaric acid derivative were found to be indispensable for the enhancement of chemical and optical yields.
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Affiliation(s)
- Hirofumi Tohma
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
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Charvát T, Potáček M, Humpa O, Marek J. Isomerization of N-aryl substituted diethyl 3-aminoglutaconates. Part I. J Mol Struct 1996. [DOI: 10.1016/0022-2860(95)09135-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Deady LW, Mackay MF, Werden DM. Reactions of some quinazoline compounds with ethoxymethylenemalonic acid derivatives. J Heterocycl Chem 1989. [DOI: 10.1002/jhet.5570260129] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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