Synthesis of UDP-4-deoxy-4-fluoroglucose and UDP-4-deoxy-4-fluorogalactose and their Interactions with Enzymes of Nucleotide Sugar Metabolism
摘要:
Fluorinated carbohydrates can be used as probes of enzymatic active sites. We report the synthesis of 4-deoxy-4-fluoro-alpha-D-galactose-1-phosphate and the substrate analogues of UDP-galactose, UDP-4-deoxy-4-fluoro-alpha-D-galactose (UDP-FGal), and of UDP-glucose, UDP-4-deoxy-4-fluoro-alpha-D-glucose (UDP-FGlc), which may be useful in analyzing the binding properties of enzymes that utilize nucleotide sugars as substrates. As a first step in this study, we determine the kinetic and inhibition parameters for UDP-FGal and UDP-FGlc interacting with UDP-glucose dehydrogenase and UDP-galactose 4-epimerase. UDP-FGlc is a substrate for bovine liver UDP-glucose dehydrogenase: K-m = 30.2 +/- 4.5 mu M slightly higher than the value 9.6 +/- 0.7 mu M for UDP-glucose, and V-mUDP-FGlc = 046V (mUDP-Glc). UDP-FGal is not a substrate for UDP-glucose dehydrogenase but is a competitive inhibitor with respect to UDP-glucose (K-i = 19.9 +/- 6.6 mu M). These analogs also bind to UDP-galactose 4-epimerase from E. coli with dissociation constants K-d of 1.4 and 1.1 mM for UDP-FGlc and UDP-FGal, respectively.
5-FLUORO-C-(ARYL OR HETEROCYCLYL)-GLYCOSIDE DERIVATIVES USEFUL AS DUAL SGLT1 / SGLT2 MODULATORS
申请人:Janssen Pharmaceutica NV
公开号:US20190055226A1
公开(公告)日:2019-02-21
The present invention is directed to 5-fluoro-C-(aryl or hetercyclyl)-glycoside derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders and conditions modulated by SGLT activity, more particularly dual SGLT1/2 activity.
The synthesis and hydrolysis of a series of deoxyfluoro-d-glucopyranosyl phosphates
作者:Stephen G. Withers、David J. MacLennan、Ian P. Street
DOI:10.1016/s0008-6215(00)90028-4
日期:1986.10
for α- d -glucopyranosyl phosphate and the 2-, 3-, 4- and 6-deoxyfluoro derivatives, respectively. The hydrolysis of 2-deoxy-2-fluoro-α- d -glucopyranosyl phosphate was studied in more detail, and an activation entropy and enthalpy of 4.1 e.u. ( m reactant) and 113.5 kJ.mol −1 , respectively, were determined for hydrolysis in m HClO 4 at 60° The pH dependence of its hydrolysis was investigated, and rate
摘要描述了全部四种脱氧氟-α-d-吡喃葡萄糖基磷酸酯的合成。确定了其酸催化水解的速率常数,并且显示出氟取代在降低速率方面具有显著作用,特别是当取代邻近异头中心时。在25℃下在m HClO 4中测量的相对速率常数对于α-d-吡喃葡萄糖基磷酸酯和2-,3-,4-和6-脱氧氟衍生物分别为60.30:1.00:7.05:3.97:16.5。详细研究了2-脱氧-2-氟-α-d-吡喃葡萄糖基磷酸酯的水解,确定了4.1 eu(m反应物)和113.5 kJ.mol -1的活化熵和焓。在60°m HClO 4中的溶液中,研究了其水解的pH依赖性,并测定了单阴离子水解的速率常数(k M = 1。因此,提取了88×10 -6 s -1)和中性(k N = 6.23×10 -5 s -1)的物种。如所预期的,单阴离子的水解不受氟取代的显着影响。根据这些发现,合理化了几种机械上不同的酶利用这些氟化底物的能力或无能为力。
Novel aromatic fluoroglycoside derivatives, medicaments containing these compounds, and the use thereof
申请人:Frick Wendelin
公开号:US20050014704A1
公开(公告)日:2005-01-20
Novel aromatic fluoroglycoside derivatives, medicaments containing these compounds, and the use thereof.
The invention relates to substituted aromatic fluoroglycoside derivatives of the formula I
in which the radicals have the stated meanings, and their physiologically tolerated salts and process for their preparation. The compounds are suitable for example as antidiabetics.
[DE] NEUE HETEROCYCLISCHE FLUORGLYKOSIDDERIVATE, DIESE VERBINDUNGEN ENTHALTENDE ARZNEIMITTEL UND DEREN VERWENDUNG<br/>[EN] NOVEL FLUOROGLYCOSIDE HETEROCYCLIC DERIVATIVES, PHARMACEUTICAL PRODUCTS CONTAINING SAID COMPOUNDS AND THE USE THEREOF<br/>[FR] NOUVEAUX DERIVES DE FLUORGLYCOSIDE HETEROCYCLIQUES, PRODUITS PHARMACEUTIQUES CONTENANT CES COMPOSES ET LEUR UTILISATION
申请人:AVENTIS PHARMA GMBH
公开号:WO2004052903A1
公开(公告)日:2004-06-24
Die Erfindung betrifft substituierte heterocyclische Fluorglykosidderivate der Formel (I), worin die Reste die angegebenen Bedeutungen haben, sowie deren physiologisch verträglichen Salze und Verfahren zu deren Herstellung. Die Verbindungen eignen sich z.B. als Antidiabetika.
Anomeric Selectivity of Trehalose Transferase with Rare <scp>l</scp>-Sugars
作者:Luuk Mestrom、Stefan R. Marsden、Hessel van der Eijk、Jesper U. Laustsen、Cy M. Jeffries、Dmitri I. Svergun、Peter-Leon Hagedoorn、Isabel Bento、Ulf Hanefeld
DOI:10.1021/acscatal.0c02117
日期:2020.8.7
glycosyltransferases catalyze the formation of glycosidic bonds between nucleotide sugar donors and carbohydrate acceptors. The anomeric selectivity of trehalose transferase from Thermoproteus uzoniensis was investigated for both d- and l-glycopyranose acceptors. The enzyme couples a wide range of carbohydrates, yielding trehalose analogues with conversion and enantioselectivity of >98%. The anomeric selectivity inverts