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An S, Zhang Z, Li P. Metal‐Free Synthesis of Selenodihydronaphthalenes by Selenoxide‐Mediated Electrophilic Cyclization of Alkynes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100423] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Shaoyu An
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Zhong Zhang
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Pingfan Li
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 100029 P. R. China
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2
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Liu JJ, Cheng L, Huang HY, Wei F, Wang D, Liu L. Unprecedented formation of 3-(tetrahydrofuran-2-yl)-4H-chromen-4-one in a reaction between 3,3a-dihydro-9H-furo[3,4-b]chromen-9-one and malononitrile. Org Biomol Chem 2017; 15:5078-5088. [PMID: 28580978 DOI: 10.1039/c7ob00904f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Chromone skeletons are widespread among natural products as well as bioactive molecules. Here, we describe an unprecedented reaction of furo[3,4-b]chromen-9-one with malononitrile to afford 3-(tetrahydrofuran-2-yl)-4H-chromen-4-ones. Experimental data suggest that a sequence of Michael/retro-Michael/nucleophilic addition is involved in this unprecedented transformation.
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Affiliation(s)
- Jie-Jie Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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3
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Sasaki T, Miyagi K, Moriyama K, Togo H. Direct Preparation of 3-Iodochromenes from 3-Aryl- and 3-Alkyl-2-propyn-1-ols with Diaryliodonium Salts and NIS. Org Lett 2016; 18:944-7. [DOI: 10.1021/acs.orglett.5b03651] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Teppei Sasaki
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
| | - Kotaro Miyagi
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
| | - Katsuhiko Moriyama
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
- Molecular
Chirality Research Center, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
| | - Hideo Togo
- Graduate
School of Science, Chiba University, Yayoi-cho 1-33,
Inage-ku, Chiba 263-8522, Japan
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Koteswara Reddy M, Jayaprakash Rao Y, David Krupadanam G. Synthesis and anti-microbial activity of new (1-alkyl-1H-1,2,3-triazol-4-yl)methyl-2H-chromene-3-carboxylates: A click chemistry approach. JOURNAL OF SAUDI CHEMICAL SOCIETY 2015. [DOI: 10.1016/j.jscs.2012.04.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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5
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Ribeiro Laia FM, Soares MIL, Gomes CSB, Pinho e Melo TMVD. Pericyclic Reactions of Azafulvenium Methides Bearing Internal Dipolarophiles - Synthesis of Chromene and Chromane Derivatives. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403407] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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6
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Ribeiro Laia FM, Gomes CS, Pinho e Melo TM. Reactivity of sarcosine and 1,3-thiazolidine-4-carboxylic acid towards salicylaldehyde-derived alkynes and allenes. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Dalvadi JP, Patel PK, Chikhalia KH. A quick and flexible synthetic approach to enureas (alkenyl ureas) via the Pd-catalyzed C–N coupling reaction of alkenyl tosylates and mesylates. RSC Adv 2013. [DOI: 10.1039/c3ra44195d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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8
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Arafa RK, Wenzler T, Brun R, Chai Y, David Wilson W. Molecular modeling study and synthesis of novel dicationic flexible triaryl guanidines and imidamides as antiprotozoal agents. Eur J Med Chem 2011; 46:5852-60. [DOI: 10.1016/j.ejmech.2011.09.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 09/19/2011] [Accepted: 09/26/2011] [Indexed: 11/28/2022]
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9
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Wu YC, Li HJ, Liu L, Liu Z, Wang D, Chen YJ. Cascade reaction of β,γ-unsaturated α-ketoesters with phenols in trityl chloride/TFA system. Highly selective synthesis of 4-aryl-2H-chromenes and their applications. Org Biomol Chem 2011; 9:2868-77. [DOI: 10.1039/c0ob01143f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Reddy BS, Antony A, Yadav J. Novel intramolecular aza-Diels–Alder reaction: a facile synthesis of trans-fused 5H-chromeno[2,3-c]acridine derivatives. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.04.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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First Concise Synthesis of Biologically Interesting Nigrolineabenzopyran A, (±)-Blandachromene II, and (±)-Daurichromene D. B KOREAN CHEM SOC 2007. [DOI: 10.5012/bkcs.2007.28.11.2061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Shieh CC, Brune ME, Buckner SA, Whiteaker KL, Molinari EJ, Milicic IA, Fabiyi AC, Daza A, Brioni JD, Carroll WA, Matsushita K, Yamada M, Kurachi Y, Gopalakrishnan M. Characterization of a novel ATP-sensitive K+ channel opener, A-251179, on urinary bladder relaxation and cystometric parameters. Br J Pharmacol 2007; 151:467-75. [PMID: 17435796 PMCID: PMC2013963 DOI: 10.1038/sj.bjp.0707249] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND PURPOSE ATP-sensitive K(+) channels (K(ATP)) play a pivotal role in contractility of urinary bladder smooth muscle. This study reports the characterization of 4-methyl-N-(2,2,2-trichloro-1-(3-pyridin-3-ylthioureido)ethyl)benzamide (A-251179) as a K(ATP) channel opener. EXPERIMENTAL APPROACH Glyburide-sensitive membrane potential, patch clamp and tension assays were employed to study the effect of A-251179 in vitro. The in vivo efficacy of A-251179 was characterized by suppression of spontaneous contractions in obstructed rat bladder and by measuring urodynamic function of urethane-anesthetized rat models. KEY RESULTS A-251179 was about 4-fold more selective in activating SUR2B-Kir6.2 derived K(ATP) channels compared to those derived from SUR2A-Kir6.2. In pig bladder smooth muscle strips, A-251179 suppressed spontaneous contractions, about 27- and 71-fold more potently compared to suppression of contractions evoked by low-frequency electrical stimulation and carbachol, respectively. In vivo, A-251179 suppressed spontaneous non-voiding bladder contractions from partial outlet-obstructed rats. Interestingly, in the neurogenic model where isovolumetric contractions were measured by continuous transvesical cystometry, A-251179 at a dose of 0.3 micromol kg(-1), but not higher, was found to increase bladder capacity without affecting either the voiding efficiency or changes in mean arterial blood pressure. CONCLUSIONS AND IMPLICATIONS The thioureabenzamide analog, A-251179 is a potent novel K(ATP) channel opener with selectivity for SUR2B/Kir6.2 containing K(ATP) channels relative to pinacidil. The pharmacological profile of A-251179 is to increase bladder capacity and to prolong the time between voids without affecting voiding efficiency and represents an interesting characteristic to be explored for further investigations of K(ATP) channel openers for the treatment of overactive bladder.
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Affiliation(s)
- C-C Shieh
- Neuroscience Research, Global Pharmaceutical Research and Development, Abbott Laboratories, Abbott Park, IL 60064, USA.
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Mebale AJA, Maggiani A, Brun P. 1H and 13C chemical shifts for some 6,6a-dihydrochromeno(3,4-b)chromene derivatives. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2006; 44:892-4. [PMID: 16755644 DOI: 10.1002/mrc.1859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The 1H and 13C NMR resonances of five 6,6a-dihydrochromeno(3,4-b)chromene derivatives were assigned completely with certainty using a concerted application of one- and two-dimensional experiments (DEPT, gs-COSY, gs-HMQC and gs-HMBC).
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Affiliation(s)
- A-J Abogo Mebale
- Laboratoire de Synthèse Organique Sélective UMR-CNRS 6114, Université de la Méditerranée, 163 Avenue de Luminy, Case 901, 13288 Marseille Cedex 9, France
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14
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15
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Lee YR, Choi JH, Yoon SH. Efficient and general method for the synthesis of benzopyrans by ethylenediamine diacetate-catalyzed reactions of resorcinols with α,β-unsaturated aldehydes. One step synthesis of biologically active (±)-confluentin and (±)-daurichromenic acid. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.08.159] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Mannhold R. KATP channel openers: structure-activity relationships and therapeutic potential. Med Res Rev 2004; 24:213-66. [PMID: 14705169 DOI: 10.1002/med.10060] [Citation(s) in RCA: 132] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
ATP-sensitive potassium channels (K(ATP) channels) are heteromeric complexes of pore-forming inwardly rectifying potassium channel subunits and regulatory sulfonylurea receptor subunits. K(ATP) channels were identified in a variety of tissues including muscle cells, pancreatic beta-cells, and various neurons. They are regulated by the intracellular ATP/ADP ratio; ATP induces channel inhibition and MgADP induces channel opening. Functionally, K(ATP) channels provide a means of linking the electrical activity of a cell to its metabolic state. Shortening of the cardiac action potential, smooth muscle relaxation, inhibition of both insulin secretion, and neurotransmitter release are mediated via K(ATP) channels. Given their many physiological functions, K(ATP) channels represent promising drug targets. Sulfonylureas like glibenclamide block K(ATP) channels; they are used in the therapy of type 2 diabetes. Openers of K(ATP) channels (KCOs), for example, relax smooth muscle and induce hypotension. KCOs are chemically heterogeneous and include as different classes as the benzopyrans, cyanoguanidines, thioformamides, thiadiazines, and pyridyl nitrates. Examples for new chemical entities more recently developed as KCOs include cyclobutenediones, dihydropyridine related structures, and tertiary carbinols.
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Affiliation(s)
- Raimund Mannhold
- Department of Laser Medicine, Molecular Drug Research Group, Heinrich-Heine-Universität, Universitätsstrasse 1, 40225 Düsseldorf, Germany.
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Lee S, Yi KY, Kim SK, Suh J, Kim NJ, Yoo SE, Lee BH, Seo HW, Kim SO, Lim H. Cardioselective anti-ischemic ATP-sensitive potassium channel (KATP) openers: benzopyranyl indoline and indole analogues. Eur J Med Chem 2003; 38:459-71. [PMID: 12767596 DOI: 10.1016/s0223-5234(03)00063-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This paper describes the design, syntheses, and biological evaluations of novel ATP-sensitive potassium channel (K(ATP)) openers, benzopyranyl indoline and indole derivatives. Among those, two enantiomers of indoline-2-carboxylic ethyl esters (14, 18) showed the best cardioprotective activities both in vitro and in vivo, while their vasorelaxation potencies were very low (concentration for 50% inhibition of vasorelaxation >30 microM). The cardioprotective effect of 14 was completely reversed by 5-hydroxydecanoate, a selective mitochondrial K(ATP) blocker, indicating its provable protective mechanism through the mitochondrial K(ATP) opening. In addition, we performed conformational analyses using 2D-NMR, X-ray crystallography and molecular modeling to study the structure-activity relationships in this series of compounds.
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Affiliation(s)
- Sunkyung Lee
- Medicinal Science Division, Korea Research Institute of Chemical Technology, 100 Jang-dong, Yoosung-gu, Taejon 305-600, South Korea
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18
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Iwanowicz EJ, Watterson SH, Liu C, Gu HH, Mitt T, Leftheris K, Barrish JC, Fleener CA, Rouleau K, Sherbina NZ, Hollenbaugh DL. Novel guanidine-based inhibitors of inosine monophosphate dehydrogenase. Bioorg Med Chem Lett 2003; 12:2931-4. [PMID: 12270177 DOI: 10.1016/s0960-894x(02)00600-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A series of novel guanidine-based small molecule inhibitors of inosine monophosphate dehydrogenase (IMPDH) was explored. IMPDH catalyzes the rate determining step in guanine nucleotide biosynthesis and is a target for anticancer, immunosuppressive and antiviral therapy. The synthesis and the structure-activity relationships (SARs), derived from in vitro studies, for this new series of inhibitors is given.
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Affiliation(s)
- Edwin J Iwanowicz
- Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton, NJ 08543-4000, USA.
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Doodeman R, Rutjes FP, Hiemstra H. Synthesis of 2-substituted chromenes via ring-closing metathesis and stable 1-benzopyrylium ions. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(00)00955-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Varma RS, Dahiya R. An Expeditious and Solvent-Free Synthesis of 2-Amino-Substituted Isoflav-3-enes Using Microwave Irradiation. J Org Chem 1998. [DOI: 10.1021/jo980985r] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rajender S. Varma
- Department of Chemistry and Texas Research Institute for Environmental Studies (TRIES), Sam Houston State University, Huntsville, Texas 77341-2117
| | - Rajender Dahiya
- Department of Chemistry and Texas Research Institute for Environmental Studies (TRIES), Sam Houston State University, Huntsville, Texas 77341-2117
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Abstract
Coronary vasodilator and hemodynamic profiles of JTV-506, a newly synthesized 2,2-bis-methoxymethyl benzopyran-derivative potassium channel opener, were evaluated in conscious dogs. JTV-506 (2.5-10 microg/kg, i.v.) elicited dose-dependent increases in coronary blood flow (CBF) and heart rate (HR) but only slight changes in mean blood pressure (MBP). Other vasodilators such as levcromakalim, nicorandil, diltiazem, and nitroglycerin, when administered intravenously, elicited increases in CBF and HR and a decrease in MBP. When dosed orally JTV-506 (0.01-0.1 mg/kg), levcromakalim (0.01-0.1 mg/kg), nicorandil (1-10 mg/kg), and nifedipine (3-30 mg/kg) also elicited increases in CBF and HR and a decrease in MBP. JTV-506 caused a marked increase in CBF with slight changes in HR and MBP. In contrast to JTV-506, however, the changes caused by levcromakalim, nicorandil, and nifedipine were accompanied by a marked increase in HR and a marked decrease in MBP. These results suggest that the action of JTV-506 on hemodynamics is different from that of other vasodilators, including reference potassium channel openers, and that the profile of cardiovascular action of JTV-506 may be useful in the treatment of angina pectoris.
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Affiliation(s)
- Y Hirata
- Biological/Pharmacological Research Laboratory, Central Pharmaceutical Research Institute, Japan Tobacco, Inc., Takatsuki, Osaka
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Ding CZ, Miller AV. Synthesis of 4-(N-alkyl-N-heteroaryl)amino-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-6-carbonitrile derivatives via an unusual 1,4-oxygen to nitrogen heteroaryl migration. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)00884-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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