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Kumar Kondapi VP, Soueidan OM, Hosseini SN, Jabari N, West FG. Efficient and Easy Access to Optically Pure Tetrasubstituted Tetrahydrofurans via Stereoselective Opening ofC2-Symmetric Epoxide and Aziridine Rings. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501540] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Kumar V, Gauniyal HM, Shaw AK. An iodocyclization approach toward diastereoselective synthesis of highly functionalized tetrasubstituted tetrahydrofurans with 2,5-trans and 2,5-cis relationships from pyranoside derived acyclic oximes. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.08.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lee J, Lee JH, Kim SY, Perry NA, Lewin NE, Ayres JA, Blumberg PM. 2-Benzyl and 2-phenyl-3-hydroxypropyl pivalates as protein kinase C ligands. Bioorg Med Chem 2006; 14:2022-31. [PMID: 16297629 DOI: 10.1016/j.bmc.2005.10.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2005] [Revised: 10/26/2005] [Accepted: 10/27/2005] [Indexed: 11/19/2022]
Abstract
A series of 2-benzyl and 2-phenyl-3-hydroxypropyl pivalates designed to incorporate the principal pharmacophores of phorbol esters have been synthesized and tested as PKC-alpha ligands. Among the analogues, 13c exhibited the most potent binding affinity with a Ki = 0.7 microM. The synthesized analogues were subjected to molecular modeling analysis based on two alternative models of the phorbol pharmacophore and a docking study of 13c was carried out.
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Affiliation(s)
- Jeewoo Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea.
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Kang JH, Peach ML, Pu Y, Lewin NE, Nicklaus MC, Blumberg PM, Marquez VE. Conformationally constrained analogues of diacylglycerol (DAG). 25. Exploration of the sn-1 and sn-2 carbonyl functionality reveals the essential role of the sn-1 carbonyl at the lipid interface in the binding of DAG-lactones to protein kinase C. J Med Chem 2005; 48:5738-48. [PMID: 16134942 PMCID: PMC2563800 DOI: 10.1021/jm050352m] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Diacylglycerol (DAG) lactones with altered functionality (C=O --> CH(2) or C=O --> C=S) at the sn-1 and sn-2 carbonyl pharmacophores were synthesized and used as probes to dissect the individual role of each carbonyl in the binding to protein kinase C (PKC). The results suggest that the hydrated sn-1 carbonyl is engaged in very strong hydrogen-bonding interactions with the charged lipid headgroups and organized water molecules at the lipid interface. Conversely, the sn-2 carbonyl has a more modest contribution to the binding process as a result of its involvement with the receptor (C1 domain) via conventional hydrogen bonding to the protein. The parent DAG-lactones, E-6 and Z-7, were designed to bind exclusively in the sn-2 binding mode to ensure the correct orientation and disposition of pharmacophores at the binding site.
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Affiliation(s)
- Ji-Hye Kang
- Laboratory of Medicinal Chemistry, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, MD 21702
| | - Megan L. Peach
- Basic Research Program, SAIC-Frederick, Inc., NCI-Frederick, Frederick, MD 21702
| | - Yongmei Pu
- Laboratory of Cellular Carcinogenesis & Tumor Promotion, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Nancy E. Lewin
- Laboratory of Cellular Carcinogenesis & Tumor Promotion, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Marc C. Nicklaus
- Laboratory of Medicinal Chemistry, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, MD 21702
| | - Peter M. Blumberg
- Laboratory of Cellular Carcinogenesis & Tumor Promotion, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Victor E. Marquez
- Laboratory of Medicinal Chemistry, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, MD 21702
- Author to whom correspondence should be addressed. Laboratory of Medicinal Chemistry, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, MD 21702Tel: 301-846-5954. Fax: 301-846-6033.
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Lee J, Han KC, Lee SY, Kim SY, Kang JH, Lewin NE, Best LS, Blumberg PM, Marquez VE. 5-acyloxy-5-hydroxymethyltetrahydro-2-furancarboxylate as a novel template for protein kinase C (PKC) binding. FARMACO (SOCIETA CHIMICA ITALIANA : 1989) 2001; 56:203-10. [PMID: 11409328 DOI: 10.1016/s0014-827x(01)01077-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A series of alkyl tetrahydrofuran-2-carboxylates (1-4) bearing a new set of three pharmacophoric groups were tested as protein kinase C (PKC) ligands. The compounds were synthesized from commercially available glycidyl 4-methoxyphenyl ether. The correlation between their binding affinities for PKC-alpha and a conformational fit to phorbol ester indicates they mimic a pharmacophore model comprising the C20-OH, C3-C=O and C9-OH rather than that including the C13-C=O moiety.
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Affiliation(s)
- J Lee
- Laboratory of Medicinal Chemistry, College of Pharmacy, Seoul National University, Shinlim-Dong, Kwanak-Ku, Seoul 151-742, South Korea.
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Abstract
Bryostatins are a class of antineoplastic compounds isolated from the bryozoans Bugula neritina. A wide range of scientific research is currently underway, studying different aspects of the bryostatins. In this review we try to summarize the latest findings, including all the topics involved, from marine biology to medicinal chemistry.
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Affiliation(s)
- R Mutter
- Department of Chemistry, University of Warwick, Coventry, UK.
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