A Fluorescence Polarization Activity-Based Protein Profiling Assay in the Discovery of Potent, Selective Inhibitors for Human Nonlysosomal Glucosylceramidase
作者:Daniël Lahav、Bing Liu、Richard J. B. H. N. van den Berg、Adrianus M. C. H. van den Nieuwendijk、Tom Wennekes、Amar T. Ghisaidoobe、Imogen Breen、Maria J. Ferraz、Chi-Lin Kuo、Liang Wu、Paul P. Geurink、Huib Ovaa、Gijsbert A. van der Marel、Mario van der Stelt、Rolf G. Boot、Gideon J. Davies、Johannes M. F. G. Aerts、Herman S. Overkleeft
DOI:10.1021/jacs.7b07352
日期:2017.10.11
assessed on GBA2 selectivity offset against the other glucosylceramide metabolizing enzymes, glucosylceramide synthase (GCS), lysosomal glucosylceramidase (GBA), and the cytosolic retaining β-glucosidase, GBA3. Our work, yielding potent and selective GBA2 inhibitors, also provides a roadmap for the development of high-throughput assays for identifying retaining glycosidase inhibitors by FluoPol-ABPP
Applications and Limitations of the I<sub>2</sub>-Mediated Carbamate Annulation for the Synthesis of Piperidines: Five- versus Six-Membered Ring Formation
作者:Hilary M. Corkran、Stefan Munneke、Emma M. Dangerfield、Bridget L. Stocker、Mattie S. M. Timmer
DOI:10.1021/jo401512h
日期:2013.10.4
A protecting-group-free synthetic strategy for the synthesis of piperidines has been explored. Key in the synthesis is an I2-mediated carbamateannulation, which allows for the cyclization of hydroxy-substituted alkenylamines into piperidines, pyrrolidines, and furans. In this work, four chiral scaffolds were compared and contrasted, and it was observed that with both d-galactose and 2-deoxy-d-galactose
A synthesis of 2-epi-fagomine using gold(I)-catalysed allene cyclisation
作者:Roderick W. Bates、Pearly Shuyi Ng
DOI:10.1016/j.tetlet.2011.03.130
日期:2011.6
A synthesis of 2-epi-fagomine via a highly stereoselective gold(I)-catalysedallene cyclisation is described. The stereochemical outcome of the cyclisation is opposite to that observed in previous studies. In contrast, gold(III)-catalysed cyclisation is inefficient and gives rise to double cyclisation by-products.
A novel and concise scheme has been developed successfully for the syntheses of N-substituted fagomine derivatives. The transformation of lactone (2) to 1,5-diol (3) was carried on with high yield (93-95%). The cyclization of 4 to 5 is a high stereoselective reaction (de value > 98%). It is disclosed that bulky substituent at N atom of the piperidine decreases the inhibition activity except those substituents having the ability of salvation or forming disulfide bond with M444 at the active site of alpha-glycosidase, which enhance the interaction with enzyme. Compounds with S-configuration at C-3 show greater activity than those with R-configuration. The structure activity relationship study is also supported by molecular docking analysis. (C) 2014 Elsevier Masson SAS. All rights reserved.