The invention is concerned with novel diazepan derivatives of formula (I)
wherein A, X, R
3
, R
4
, R
5
, R
6
, R
8
, R
9
, R
10
, R
11
, R
12
, R
13
, m and n are as defined in the description and in the claims, as well as physiologically acceptable salts thereof. These compounds are antagonists of CCR-2 receptor, CCR-5 receptor and/or CCR-3 receptor and can be used as medicaments.
The asymmetric synthesis of fagomine and its congeners 1-4 has been achieved by catalytic ring-closing metathesis (RCM). The synthesis involved the construction of the piperidene-type chiral building block 5 followed by dihydroxylation, starting from the d-serine-derived Garner aldehyde 6.
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
Chiron Approach to the Synthesis of (2<i>S</i>,3<i>R</i>)-3-Hydroxypipecolic Acid and (2<i>R</i>,3<i>R</i>)-3-Hydroxy-2-hydroxymethylpiperidine from <scp>d</scp>-Glucose
作者:Navnath B. Kalamkar、Vijay M. Kasture、Dilip D. Dhavale
DOI:10.1021/jo702749r
日期:2008.5.1
the totalsynthesis of (2S,3R)-3-hydroxypipecolicacid (−)-1a and (2R,3R)-3-hydroxy-2-hydroxymethylpiperidine (−)-2a is reported. The synthetic pathway involves conversion of d-glucose into 3-azidopentodialdose (5) followed by the Wittig olefination and reduction to give the piperidine ring skeleton (8) with a sugar appendage that on cleavage of an anomeric carbon followed by oxidation gives (−)-1a
Stereospecific, Flexible and Redox-Economic Asymmetric Synthesis of<i>cis</i>- and<i>trans</i>-3-Hydroxypipecolic Acids and Analogs
作者:Bing Wang、Run-Hua Liu
DOI:10.1002/ejoc.200900231
日期:2009.6
trans-3-hydroxy-L-pipecolic acids are synthesized from a common chiral intermediate 7 by a short and flexible route. The stereospecific inversion of C-3 was achieved by the formation of an oxazoline followed by acidic ring cleavage. The overall yields are 27 % and 30 %, respectively, in 12 and 10 linear steps. Several versatile chiral building blocks are also accessible by this diastereodivergent synthesis. Unlike the