Synthesis of structure-defined branched hyaluronan tetrasaccharide glycoclusters
作者:Meng Sha、Wang Yao、Xiao Zhang、Zhongjun Li
DOI:10.1016/j.tetlet.2017.06.032
日期:2017.7
Hyaluronan of different molecular weight often shows different biological activity, sometimes even completely opposite, but the mechanism is not clear. Herein, the hyaluronan tetrasaccharide glycoclusters using hyaluronan tetrasaccharide obtained by enzymolysis of natural hyaluronan were firstly synthesized in high yield. The structurally determined and diverse glycoclusters were of wide molecular weight
[EN] POLYMER CONJUGATE COMPRISING A BIOACTIVE AGENT<br/>[FR] CONJUGUÉ DE POLYMÈRE COMPRENANT UN AGENT BIOACTIF
申请人:POLYACTIVA PTY LTD
公开号:WO2017041142A1
公开(公告)日:2017-03-16
The present invention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety selected from quinolones, NSAIDs and mixtures thereof. The present invention also relates to methods for preparing the polymer conjugates using click cycloaddition chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the post-surgical care to treat or prevent infections, provide analgesia and treat inflammation.
[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)
Adaptable synthesis of C-lactosyl glycoclusters and their binding properties with galectin-3
作者:Wang Yao、Meng-jie Xia、Xiang-bao Meng、Qing Li、Zhong-jun Li
DOI:10.1039/c4ob01374c
日期:——
The synthesis of mono- to tetravalent C-β-lactosyl glycoclusters has been achieved in good yield. The KD values of glycoclusters against galectin-3 were tested by SPR assay, and the structure–activity relationship has been summarized in detail.