[EN] NEW DENDRIMERIC PYRROLIDINES, THEIR SYNTHESIS AND MEDICAL USE<br/>[FR] NOUVELLES PYRROLIDINES DENDRIMÈRES, LEUR SYNTHÈSE ET UTILISATION MÉDICALE
申请人:UNIVERSITA' DEGLI STUDI DI FIRENZE
公开号:WO2017137895A1
公开(公告)日:2017-08-17
The subject-matter of the present invention relates to the synthesis of new dendrimeric molecules based on polyhydroxylated pyrrolidines obtained by means of Click Chemistry reactions. The proposed molecules inhibit the enzymes N-acetylgalactosamine-6-sulfatase (GALNS), iduronate-2-sulfatase (IDS), a-mannosidase and β-glucosidase, deficient in lysosomal storage diseases. The presentation of multivalent iminosugars on a scaffold is a prerequisite for the inhibitory activity as the corresponding monomers are not active. The inhibitory activity reported is the basis for the development of the first-ASSC pharmacological chaperones proposed for the treatment of the above mentioned pathologies. Formula (I)
Multivalency To Inhibit and Discriminate Hexosaminidases
作者:Dimitri Alvarez-Dorta、Dustin T. King、Thibaut Legigan、Daisuke Ide、Isao Adachi、David Deniaud、Jérôme Désiré、Atsushi Kato、David Vocadlo、Sébastien G. Gouin、Yves Blériot
DOI:10.1002/chem.201701756
日期:2017.7.6
cyclodextrin scaffolds was prepared. The compounds were assessed against plant, mammalian, and therapeutically relevant hexosaminidases. Multimerization was shown to improve the inhibitory potency with synergy, and to fine tune the selectivity profile between related hexosaminidases.
The synthesis and biological evaluation of labelled karrikinolides for the elucidation of the mode of action of the seed germination stimulant
作者:Adrian Scaffidi、Gavin R. Flematti、David C. Nelson、Kingsley W. Dixon、Steven M. Smith、Emilio L. Ghisalberti
DOI:10.1016/j.tet.2010.11.006
日期:2011.1
promote seed germination among a diverse range of species. Currently little is known about the mechanism by which these compounds overcome seed dormancy and initiate germination. The preparation of various karrikinolide derivatives provides an opportunity to investigate the karrikinolide mode of action at the cellular and molecular level. The first synthesis and biologicalevaluation of analogues suitable
The multivalent piperidine iminosugars described in this work are strong inhibitors of glucocerebrosidase (GCase), the defective enzyme in Gaucher disease. The trivalent derivative 12 was able to double GCase activity in patient's fibroblasts homozygous for the L444P mutation, which is resistant to most pharmacological chaperones. Co-incubation of 12 with recombinant GCase enzyme paves the way to its
GCase in the light-activated form than in the thermally-deactivated one were identified for the development of pharmacologicalchaperones. The study shows that enantiopure trihydroxypiperidine and azobenzene are key-units in the inhibition process of human GCase enzyme and that photoswitchable iminosugars bind at an allosteric site.