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Abas H, Amer MM, Olaizola O, Clayden J. N-Chloroformylimidazolidinone Enolates as 1,3-Dipolar Reagents for the Stereoselective Synthesis of 3,4-Dihydroisoquinolones. Org Lett 2019; 21:1908-1911. [PMID: 30802074 DOI: 10.1021/acs.orglett.9b00548] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
N-Chloroformyl imidazolidinone derivatives of enantiopure amino acids may be deprotonated to give remarkably well-behaved enolates with both nucleophilic and electrophilic character. The enolates undergo diastereoselective C-alkylation with benzylic halides. A Bischler-Napieralski-like cyclization reaction onto the chloroformyl group, induced by either nucleophilic (KI, 2,6-lutidine) or Lewis acid (AlCl3) catalysis, gives substituted 3,4-dihydroisoquinolone derivatives in enantioenriched form. The reaction sequence constitutes a formal [3 + 3] route to the six-membered lactam ring of the dihydroisoquinolones.
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Affiliation(s)
- Hossay Abas
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , U.K
| | - Mostafa M Amer
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , U.K
| | - Olatz Olaizola
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , U.K
| | - Jonathan Clayden
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , U.K
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2
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Liu Y, Wang C, Xue D, Xiao M, Liu J, Li C, Xiao J. Reactions Catalysed by a Binuclear Copper Complex: Relay Aerobic Oxidation of N
-Aryl Tetrahydroisoquinolines to Dihydroisoquinolones with a Vitamin B1 Analogue. Chemistry 2017; 23:3062-3066. [PMID: 27880016 DOI: 10.1002/chem.201604750] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Yuxia Liu
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P. R. China
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P. R. China
| | - Dong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P. R. China
| | - Miao Xiao
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P. R. China
| | - Jiao Liu
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P. R. China
| | - Chaoqun Li
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P. R. China
| | - Jianliang Xiao
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P. R. China
- Department of Chemistry; University of Liverpool; Liverpool L69 7ZD UK
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3
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Pedroni J, Saget T, Donets PA, Cramer N. Enantioselective palladium(0)-catalyzed intramolecular cyclopropane functionalization: access to dihydroquinolones, dihydroisoquinolones and the BMS-791325 ring system. Chem Sci 2015; 6:5164-5171. [PMID: 29142735 PMCID: PMC5667185 DOI: 10.1039/c5sc01909e] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 06/17/2015] [Indexed: 01/20/2023] Open
Abstract
Taddol-based phosphoramidite ligands enable enantioselective palladium(0)-catalyzed C-H arylation of cyclopropanes. The cyclized products are obtained in high yields and enantioselectivities. The reported method provides efficient access to a broad range of synthetically attractive cyclopropyl containing dihydroquinolones and dihydroisoquinolones as well as allows for an efficient enantioselective construction of the 7-membered ring of the cyclopropyl indolobenzazepine core of BMS-791325.
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Affiliation(s)
- J Pedroni
- Laboratory of Asymmetric Catalysis and Synthesis , Institute of Chemical Sciences and Engineering , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSA, BCH 4305 , CH-1015 Lausanne , Switzerland .
| | - T Saget
- Laboratory of Asymmetric Catalysis and Synthesis , Institute of Chemical Sciences and Engineering , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSA, BCH 4305 , CH-1015 Lausanne , Switzerland .
| | - P A Donets
- Laboratory of Asymmetric Catalysis and Synthesis , Institute of Chemical Sciences and Engineering , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSA, BCH 4305 , CH-1015 Lausanne , Switzerland .
| | - N Cramer
- Laboratory of Asymmetric Catalysis and Synthesis , Institute of Chemical Sciences and Engineering , Ecole Polytechnique Fédérale de Lausanne , EPFL SB ISIC LCSA, BCH 4305 , CH-1015 Lausanne , Switzerland .
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4
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Yamanaka T, Ohkubo M, Kuroda S, Nakamura H, Takahashi F, Aoki T, Mihara K, Seki J, Kato M. Design, synthesis, and structure–activity relationships of potent GPIIb/IIIa antagonists: discovery of FK419. Bioorg Med Chem 2005; 13:4343-52. [PMID: 15927840 DOI: 10.1016/j.bmc.2005.03.056] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2005] [Revised: 03/31/2005] [Accepted: 03/31/2005] [Indexed: 11/30/2022]
Abstract
The discovery of the non-peptide antiplatelet injectable agent FK419 is reported. Based on the beta-turn structure of RGD peptide sequences in the alpha chain of fibrinogen, which binds the glycoprotein IIb/IIIa (GPIIb/IIIa) on the surface of platelets to induce platelet aggregation, the prototype 2 was designed. After further substituent effects were investigated at the alpha-position of the carboxylic acid in 2, we enhanced platelet aggregation inhibition, and discovered the useful feature of reduced prolongation of bleeding time. Finally, the potent platelet aggregation inhibitor FK419 (3) could be discovered. FK419 shows a safe feature of reduced prolongation of bleeding time, as well as potent inhibition of platelet aggregation.
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Affiliation(s)
- Toshio Yamanaka
- Medicinal Chemistry Research Laboratories, Fujisawa Pharmaceutical Co., Ltd, 2-1-6 Kashima, Yodogawa-Ku, Osaka 532-8514, Japan.
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5
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Scarborough RM, Gretler DD. Platelet glycoprotein IIb-IIIa antagonists as prototypical integrin blockers: novel parenteral and potential oral antithrombotic agents. J Med Chem 2000; 43:3453-73. [PMID: 10999999 DOI: 10.1021/jm000022w] [Citation(s) in RCA: 99] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R M Scarborough
- COR Therapeutics, Inc., South San Francisco, California 94080, USA.
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6
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Fisher MJ, Giese U, Harms CS, Kinnick MD, Lindstrom TD, McCowan JR, Mest HJ, Morin JM, Mullaney JT, Paal M, Rapp A, Rühter G, Ruterbories KJ, Sall DJ, Scarborough RM, Schotten T, Stenzel W, Towner RD, Um SL, Utterback BG, Wyss VL, Jakubowski JA. Fused bicyclic Gly-Asp beta-turn mimics with potent affinity for GPIIb-IIIa. Exploration of the arginine isostere. Bioorg Med Chem Lett 2000; 10:385-9. [PMID: 10714506 DOI: 10.1016/s0960-894x(00)00008-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
6-[4-Amidinobenzoyl]amino]-tetralone-2-acetic acid is a potent antagonist of GPIIb-IIIa. Substitution in the meta position of the benzamidine, or replacement with a heteroaryl amidine was tolerated in this series. Use of an acyl-linked 4-alkyl piperidine as an arginine isostere also provided active compounds. Compounds from this series provided substantial systemic exposure in the rat following oral administration.
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Affiliation(s)
- M J Fisher
- Eli Lilly and Company, Indianapolis, Indiana 46028, USA
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7
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Fisher MJ, Arfstan AE, Giese U, Gunn BP, Harms CS, Khau V, Kinnick MD, Lindstrom TD, Martinelli MJ, Mest HJ, Mohr M, Morin JM, Mullaney JT, Nunes A, Paal M, Rapp A, Rühter G, Ruterbories KJ, Sall DJ, Scarborough RM, Schotten T, Sommer B, Stenzel W, Towner RD, Um SL. Fused bicyclic Gly-Asp beta-turn mimics with specific affinity for GPIIb-IIIa. J Med Chem 1999; 42:4875-89. [PMID: 10579850 DOI: 10.1021/jm990365y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Disubstituted isoquinolones 2 and 3 have affinity for GPIIb-IIIa and represent leads for further structural evaluation. Structure-activity studies centered on the bicyclic beta-turn mimic contained in these molecules indicated that this moiety could accommodate a variety of modifications. Specifically, monocyclic, 6, 5-bicyclic, and 6,7-bicyclic structures provide compounds with affinity for GPIIb-IIIa. Within the 6,6-series, isoquinoline, tetralin, tetralone, and benzopyran nuclei yield potent antagonists that are specific for GPIIb-IIIa. Attachment of the arginine isostere (benzamidine) to the supporting nucleus can be accomplished with an ether or amide linkage, although the latter enhances activity. Several compounds in this series provided measurable blood levels after oral dosing. Conversion of the acid moiety in these molecules to an ester generally provided compounds which gave greater systemic exposure after oral administration. Absolute bioavailabilities in the rat for the ethyl ester prodrug derivatives of the tetralin, tetralone, and benzopyran analogues of 3 were 28%, 23%, and 24%, respectively.
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Affiliation(s)
- M J Fisher
- Eli Lilly and Company, Indianapolis, Indiana 46028, Lilly Research Laboratories, Hamburg, Germany, and COR Therapeutics, Inc., South San Francisco, California 94080, USA
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8
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Hartman GD, Duggan ME, Hoffman WF, Meissner RJ, Perkins JJ, Zartman AE, Naylor-Olsen AM, Cook JJ, Glass JD, Lynch RJ, Zhang G, Gould RJ. Nonpeptide glycoprotein IIB/IIIA inhibitors. 19. A new design paradigm employing linearly minimized, centrally constrained, exosite inhibitors. Bioorg Med Chem Lett 1999; 9:863-8. [PMID: 10206551 DOI: 10.1016/s0960-894x(99)00104-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A new series of potent, linearly-minimized, orally active, selective GPIIb/IIIa inhibitors is identified. Thus 15 (L-750,034) achieves interaction via a constrained, non-turned conformation that maintains the proper distance between its charged termini and full sulfonamide exosite interaction. The diminutive stature and the proposed linear conformation of L-750,034 define a new paradigm for the conceptualization of RGD mimics.
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Affiliation(s)
- G D Hartman
- Department of Medicinal Chemistry, Merck Research Laboratories, West Point, PA 19486, USA
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9
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Weber AE, Mathvink RJ, Perkins L, Hutchins JE, Candelore MR, Tota L, Strader CD, Wyvratt MJ, Fisher MH. Potent, selective benzenesulfonamide agonists of the human beta 3 adrenergic receptor. Bioorg Med Chem Lett 1998; 8:1101-6. [PMID: 9871716 DOI: 10.1016/s0960-894x(98)00169-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A cloned human beta 3 adrenergic receptor assay was used to identify phenoxypropanolamine agonist 1. SAR studies led to the identification of benzenesulfonamide derivative 20, a 6.3 nM beta 3 agonist which shows 30-fold selectivity for beta 3 agonist activity over beta 1 and beta 2 receptor binding. Further refinement of this lead provided 4-bromo derivative 39, a subnanomolar agonist with 660-fold and 230-fold selectivity over beta 1 and beta 2, respectively.
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MESH Headings
- Adrenergic beta-Agonists/chemical synthesis
- Adrenergic beta-Agonists/chemistry
- Adrenergic beta-Agonists/pharmacology
- Cloning, Molecular
- Drug Design
- Humans
- Molecular Conformation
- Molecular Structure
- Propanolamines/chemical synthesis
- Propanolamines/chemistry
- Propanolamines/pharmacology
- Receptors, Adrenergic, beta/drug effects
- Receptors, Adrenergic, beta/physiology
- Receptors, Adrenergic, beta-1/drug effects
- Receptors, Adrenergic, beta-2/drug effects
- Receptors, Adrenergic, beta-3
- Recombinant Proteins/drug effects
- Recombinant Proteins/metabolism
- Stereoisomerism
- Structure-Activity Relationship
- Sulfonamides/chemical synthesis
- Sulfonamides/chemistry
- Sulfonamides/pharmacology
- Benzenesulfonamides
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Affiliation(s)
- A E Weber
- Department of Medicinal Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, USA
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