This review includes a personal account of the history of the development of the alpha-amido boronic acid synthesis and related chemistry in the author's laboratory, as well as a review of some of the more significant developments that have occurred elsewhere more recently. The simple initial target, suggested by biochemist G. E. Lienhard, proved much more elusive to reach than anticipated. The circuitous effort that ultimately revealed the deceptively simple successful route, for which there is still no alternative, will be described. The properties of these compounds as enzyme inhibitors will be described very briefly. More extensive reviews of the enzyme inhibiting properties of alpha-amido boronic acids have appeared recently.
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http://dx.doi.org/10.1002/med.20105 | DOI Listing |
Bioorg Med Chem
July 2024
Sohyaku. Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, 1000, Kamoshida-cho, Aoba-ku, Yokohama 227-0033, Japan. Electronic address:
The immunoproteasome subunit LMP7 (β5i)/LMP2 (β1i) dual blockade has been reported to suppress B cell differentiation and activation, suggesting that the dual inhibition of LMP7/LMP2 is a promising approach for treating autoimmune diseases. In contrast, the inhibition of the constitutive proteasome subunit β5c correlates with cytotoxicity against non-immune cells. Therefore, LMP7/LMP2 dual inhibitors with high selectivity over β5c may be desirable for treating autoimmune diseases.
View Article and Find Full Text PDFAntimicrob Agents Chemother
January 2023
Department of Biochemistry, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA.
Design of novel β-lactamase inhibitors (BLIs) is one of the currently accepted strategies to combat the threat of cephalosporin and carbapenem resistance in Gram-negative bacteria. oronic cid ransition tate nhibitors (BATSIs) are competitive, reversible BLIs that offer promise as novel therapeutic agents. In this study, the activities of two α-amido-β-triazolylethaneboronic acid transition state inhibitors (S02030 and MB_076) targeting representative KPC (KPC-2) and CTX-M (CTX-M-96, a CTX-M-15-type extended-spectrum β-lactamase [ESBL]) β-lactamases were evaluated.
View Article and Find Full Text PDFOrg Lett
January 2022
State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Rd, Shanghai 200032, China.
Highly enantioselective rhodium-catalyzed hydrogenation of ()--sulfonyl-α-dehydroamido boronic esters is realized for the first time using a JosiPhos-type ligand. This method has enabled convenient synthesis of a series of enantio-enriched -sulfonyl-α-amido boronic esters in good yields and excellent enantioselectivities (up to 99% ee).
View Article and Find Full Text PDFJ Org Chem
January 2010
The Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom.
Methods for the deprotection of pinanediol and pinacol esters of various boronic acids via fluoroborane intermediates were evaluated. Treatment of the boronate esters with potassium hydrogen difluoride normally gives trifluoroborate salts; in the case of alpha-amido alkyl or o-amido phenyl boronate esters, aqueous workup gives difluoroboranes. Procedures for transformation of both trifluoroborates and difluoroboranes to free boronic acids are described.
View Article and Find Full Text PDFMed Res Rev
March 2008
Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA.
This review includes a personal account of the history of the development of the alpha-amido boronic acid synthesis and related chemistry in the author's laboratory, as well as a review of some of the more significant developments that have occurred elsewhere more recently. The simple initial target, suggested by biochemist G. E.
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