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Mitton-Fry MJ, Arcari JT, Brown MF, Casavant JM, Finegan SM, Flanagan ME, Gao H, George DM, Gerstenberger BS, Han S, Hardink JR, Harris TM, Hoang T, Huband MD, Irvine R, Lall MS, Megan Lemmon M, Li C, Lin J, McCurdy SP, Mueller JP, Mullins L, Niosi M, Noe MC, Pattavina D, Penzien J, Plummer MS, Risley H, Schuff BP, Shanmugasundaram V, Starr JT, Sun J, Winton J, Young JA. Corrigendum to “Novel monobactams utilizing a siderophore uptake mechanism for the treatment of Gram-negative infections” [Bioorg. Med. Chem. Lett. 22/18 (2012) 5989–5994]. Bioorg Med Chem Lett 2015. [DOI: 10.1016/j.bmcl.2015.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Flanagan ME, Abramite JA, Anderson DP, Aulabaugh A, Dahal UP, Gilbert AM, Li C, Montgomery J, Oppenheimer SR, Ryder T, Schuff BP, Uccello DP, Walker GS, Wu Y, Brown MF, Chen JM, Hayward MM, Noe MC, Obach RS, Philippe L, Shanmugasundaram V, Shapiro MJ, Starr J, Stroh J, Che Y. Chemical and computational methods for the characterization of covalent reactive groups for the prospective design of irreversible inhibitors. J Med Chem 2014; 57:10072-9. [PMID: 25375838 DOI: 10.1021/jm501412a] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Interest in drugs that covalently modify their target is driven by the desire for enhanced efficacy that can result from the silencing of enzymatic activity until protein resynthesis can occur, along with the potential for increased selectivity by targeting uniquely positioned nucleophilic residues in the protein. However, covalent approaches carry additional risk for toxicities or hypersensitivity reactions that can result from covalent modification of unintended targets. Here we describe methods for measuring the reactivity of covalent reactive groups (CRGs) with a biologically relevant nucleophile, glutathione (GSH), along with kinetic data for a broad array of electrophiles. We also describe a computational method for predicting electrophilic reactivity, which taken together can be applied to the prospective design of thiol-reactive covalent inhibitors.
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Affiliation(s)
- Mark E Flanagan
- Center of Chemistry Innovation and Excellence, and ‡Department of Pharmacokinetics, Dynamics and Metabolism, Pfizer, Inc. , Eastern Point Road, Groton, Connecticut 06340, United States
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Brown MF, Mitton-Fry MJ, Arcari JT, Barham R, Casavant J, Gerstenberger BS, Han S, Hardink JR, Harris TM, Hoang T, Huband MD, Lall MS, Lemmon MM, Li C, Lin J, McCurdy SP, McElroy E, McPherson C, Marr ES, Mueller JP, Mullins L, Nikitenko AA, Noe MC, Penzien J, Plummer MS, Schuff BP, Shanmugasundaram V, Starr JT, Sun J, Tomaras A, Young JA, Zaniewski RP. Pyridone-conjugated monobactam antibiotics with gram-negative activity. J Med Chem 2013; 56:5541-52. [PMID: 23755848 DOI: 10.1021/jm400560z] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Herein we describe the structure-aided design and synthesis of a series of pyridone-conjugated monobactam analogues with in vitro antibacterial activity against clinically relevant Gram-negative species including Pseudomonas aeruginosa , Klebsiella pneumoniae , and Escherichia coli . Rat pharmacokinetic studies with compound 17 demonstrate low clearance and low plasma protein binding. In addition, evidence is provided for a number of analogues suggesting that the siderophore receptors PiuA and PirA play a role in drug uptake in P. aeruginosa strain PAO1.
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Affiliation(s)
- Matthew F Brown
- Worldwide Medicinal Chemistry, ‡Computational Chemistry, §Antibacterials Research Unit, ∥Pharmacokinetics, Dynamics & Metabolism, ⊥Structural Biology, Pfizer Global Research and Development , Eastern Point Road, Groton, Connecticut 06340, United States
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Mitton-Fry MJ, Arcari JT, Brown MF, Casavant JM, Finegan SM, Flanagan ME, Gao H, George DM, Gerstenberger BS, Han S, Hardink JR, Harris TM, Hoang T, Huband MD, Irvine R, Lall MS, Megan Lemmon M, Li C, Lin J, McCurdy SP, Mueller JP, Mullins L, Niosi M, Noe MC, Pattavina D, Penzien J, Plummer MS, Risley H, Schuff BP, Shanmugasundaram V, Starr JT, Sun J, Winton J, Young JA. Novel monobactams utilizing a siderophore uptake mechanism for the treatment of gram-negative infections. Bioorg Med Chem Lett 2012; 22:5989-94. [PMID: 22892121 DOI: 10.1016/j.bmcl.2012.07.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 06/27/2012] [Accepted: 07/02/2012] [Indexed: 11/16/2022]
Abstract
Novel siderophore-linked monobactams with in vitro and in vivo anti-microbial activity against MDR Gram-negative pathogens are described.
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Affiliation(s)
- Mark J Mitton-Fry
- Medicinal Chemistry, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, CT 06340, USA
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Flanagan ME, Brickner SJ, Lall M, Casavant J, Deschenes L, Finegan SM, George DM, Granskog K, Hardink JR, Huband MD, Hoang T, Lamb L, Marra A, Mitton-Fry M, Mueller JP, Mullins LM, Noe MC, O'Donnell JP, Pattavina D, Penzien JB, Schuff BP, Sun J, Whipple DA, Young J, Gootz TD. Preparation, gram-negative antibacterial activity, and hydrolytic stability of novel siderophore-conjugated monocarbam diols. ACS Med Chem Lett 2011; 2:385-90. [PMID: 24900319 DOI: 10.1021/ml200012f] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Accepted: 02/19/2011] [Indexed: 11/28/2022] Open
Abstract
A novel series of monocarbam compounds exhibiting promising antibacterial activity against multidrug resistant Gram-negative microorganisms is reported, along with the synthesis of one such molecule MC-1 (1). Also reported are structure-activity relationships associated with the in vitro and in vivo efficacy of 1 and related analogues in addition to the hydrolytic stability of such compounds and possible implications thereof.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Andrea Marra
- Rib-X Pharmaceuticals, New Haven, Connecticut 06511, United States
| | | | | | | | | | | | | | | | | | | | - David A. Whipple
- Del Shankel Structural Biology Center, University of Kansas, Lawrence, Kansas 66047, United States
| | | | - Thomas D. Gootz
- Thomas Gootz Consulting, LLC, Estes Park, Colorado 80517, United States
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Abstract
A novel method for palladium-catalyzed stereoselective formation of alpha-O-glycosides has been developed. This strategy relies on the palladium-biaryl phosphine catalyst-glycal donor complexation to control the anomeric selectivity. It does not depend on the nature of the protecting groups on the substrates, thus eliminating the need for cumbersome protecting group manipulations.
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Affiliation(s)
- Brandon P Schuff
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, USA
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