A new, promising chiral building block 9 for the synthesis of 1-deoxy-4,5-trans-oriented azasugars such as 1-deoxynojirimycin (1) was prepared in only four steps from the Garner aldehyde 10 using catalytic ring-closing metathesis (RCM) for the construction of the piperidine ring. In practical test, the first synthesis of all four isomers (1 and 6-8) of trans-4,5-orientated 1-deoxyiminosugars using
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
A new approach to 1-deoxy-azasugars: asymmetric synthesis of 1-deoxymannojirimycin and 1-deoxyaltronojirimycin
作者:Yi-Ming Xu、Wei-Shan Zhou
DOI:10.1039/a605128f
日期:——
A concise and flexible method, based upon the kinetic
resolution of racemic α-furfuryl amine derivatives, for the
asymmetric synthesis of 1-deoxy-azasugars is described.
(-)-1-Deoxymannojirimycin 1a has been synthesized in nine
steps (5.8% overall yield) from the α-furfurylamine
derivative 3 and its enantiomer (+)-1-deoxymannojirimycin 1b has
been similarly synthesized in nine steps (3.7% overall yield)
from (S)-3. (-)- and (+)-1-Deoxyaltronojirimycin,
16a and 16b, have also been synthesized in five steps (overall
yields 21.5% and 25.4%, respectively) from the intermediates 9a
and 9b, respectively.
Diastereoselective Synthesis of 1-Deoxygalactonojirimycin, 1-Deoxyaltronojirimycin, and <i>N</i>-Boc-(2<i>S</i>,3<i>S</i>)-3-Hydroxypipecolic Acid via Proline Catalyzed α-Aminoxylation of Aldehydes
作者:Shibin Chacko、Ramesh Ramapanicker
DOI:10.1021/acs.joc.5b00424
日期:2015.5.1
An efficient synthesis of deoxygalactonojirimycin and deoxyaltronojirimycin through the use of proline catalyzed asymmetric α-aminoxylation of a higher homologue of Garner’s aldehyde, derivedfrom l-aspartic acid, is reported. The method is also used for a highly diastereoselective synthesis of the N-Boc derivative of (2S,3S)-3-hydroxypipecolic acid. The configuration of the proline catalyst used for
Improved synthesis of 1-deoxynojirimycin (9) from (E)-alpha,beta-unsaturated ester(1) and facile synthesis of 1-deoxyazasugars (14 and 15) from 10 where both substrates (1 and 10) prepared from (S)-pyroglutamic acid were described.