[EN] L-PYRANOSYL NUCLEOSIDES<br/>[FR] NUCLEOSIDES DE L-PYRANOSYLE
申请人:GENENCOR INTERNATIONAL, INC.
公开号:WO1996012728A1
公开(公告)日:1996-05-02
(EN) This invention relates to $g(a) and $g(b)-L-pyranosyl nucleosides, processes for their preparation, pharmaceutical compositions containing them, and methods of using them to treat various diseases in mammals.(FR) L'invention concerne des nucléosides de $g(a) et $g(b)-L-pyranosyle, des procédés servant à les préparer, des compositions pharmaceutiques les contenant et des procédés servant à les utiliser, afin de traiter différentes maladies chez les mammifères.
Meteorite-catalyzed intermolecular <i>trans</i>-glycosylation produces nucleosides under proton beam irradiation
Di-glycosylated adenines act as glycosyl donors in the intermolecular trans-glycosylation of pyrimidine nucleobases under proton beam irradiation conditions. Formamide and chondrite meteorite NWA 1465 increased the yield and the selectivity of the reaction. The glycosyl transfer process was highly regioselective in yielding canonical N 1-pyrimidine nucleosides, the natural β-anomers prevailing in the
在质子束照射条件下,二糖基化腺嘌呤在嘧啶核碱基的分子间反式糖基化中充当糖基供体。甲酰胺和球粒陨石 NWA 1465 提高了反应的产率和选择性。糖基转移过程在产生经典 N 1-嘧啶核苷方面具有高度区域选择性,这是在甲酰胺和 NWA 1465 存在下普遍存在的天然 β-异头物。这些数据突出了分子间反式糖基化在嘌呤和嘧啶的益生元形成中的可能作用核苷,避免出现独立的合成途径。