[EN] MODIFIED OLIGOMERIC COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS OLIGOMÈRES MODIFIÉS ET LEURS UTILISATIONS
申请人:IONIS PHARMACEUTICALS INC
公开号:WO2021030763A1
公开(公告)日:2021-02-18
The present disclosure provides oligomeric compounds comprising a modified oligonucleotide having at least one stereo-non-standard nucleoside. An oligomeric compound comprising a modified oligonucleotide consisting of 12-30 linked nucleosides, wherein at least one nucleoside of the modified oligonucleotide is a stereo-non-standard nucleoside; and wherein the oligomeric compound is selected from among an RNAi compound, a modified CRISPR compound, and an artificial mRNA compound.
The synthesis of unprecedented bicyclic oxazolidin‐2‐one (OZO) fused iminosugars is described. The key step involves a tandem Staudinger/retro Michael/aza Michael sequence from OZO azidosugars, themselves obtained through oxidation of oxazolidin‐2‐thione (OZT) precursors. The iminosugars were subsequently evaluated as glycosidaseinhibitors.
Determination of the absolute configuration of monosaccharides by 1H NMR spectroscopy of their per-O-(S)-2-methylbutyrate derivatives
作者:William S. York、Stephen Hantus、Peter Albersheim、Alan G. Darvill
DOI:10.1016/s0008-6215(97)00050-5
日期:1997.5
Abstract An empirical method was developed to determine the absoluteconfiguration of monosaccharides, based on high-field 1H NMR spectroscopy of their per- O-(S)-2-methylbutyrate (SMB) derivatives. The SMB derivatives of the D and L forms of a given monosaccharide are diastereomers, allowing them to be distinguished on the basis of differences in their 1H NMR chemical shifts. The reproducibility of
Bioactivity of Diosmetin Glycosides Isolated from the Epicarp of Date Fruits, <i>Phoenix dactylifera</i>
, on the Biochemical Profile of Alloxan Diabetic Male Rats
assessed for their biological activity on alloxandiabeticrats. A dose of 1.5 ml of (1) and (2) suspensions/100 gm b. wt were orally administrated to alloxandiabeticrats for 30 days. The treatment of diabeticrats with these compounds resulted in marked improvement of the different biochemical results, i.e. the serum glucose level (highly significant, from 330 + 5.5 mg/dL to 140 + 1.2 mg/dL) treated