7355-18-2Relevant articles and documents
Synthesis of a Macrocyclic Conjugate of the Diterpenoid Isosteviol and Glucuronic Acid
Andreeva,Sharipova,Garifullin,Strobykina, I. Yu.,Kataev
, p. 689 - 692 (2015)
A macrocyclic conjugate of the natural diterpenoid isosteviol (16-oxo-ent-beyeran-19-oic acid) and glucuronic acid was synthesized for the first time. The conjugate contained two molecules of dihydroisosteviol β-D-glucuronoside joined by 1,8-octanedicarboxylate and 1,8-octanedicarbazoyl spacers.
Bile alcohol glucuronides: Regioselective O-glucuronidation of 5β-cholestane-3α,7α,12α,25-tetrol and 24-nor-5β-cholestane-3α,7α,12α,25-tetrol
Dayal,Salen,Padia,Shefer,Tint,Sasso,Williams
, p. 133 - 142 (1993)
A facile and regiocontrolled procedure for the preparation of 5β-cholestane-3α,7α,12α,25-tetrol-3-O-β-D-glucuronide and its corresponding C-26 analogue is described. The method involves direct coupling of bile alcohols, namely, 5β-cholestane-3α,7α,12α,25-tetrol and 24-nor-5β-cholestane-3α,7α,12α,25-tetrol to methyl (tetra-O-acetyl-β-D-glucopyranuronate) in the presence of a Lewis acid, tin(IV) chloride, in dichloromethane. The resulting anomeric pairs of 1,2-trans- and 1,2-cis-glucuronides of tetrols were resolved by analytical and preparative thin-layer chromatography, and their identities were established by high-resolution 1H NMR spectroscopy and by chemical-ionization and fast-atom-bombardment mass spectrometry. The method described has a practical advantage over the traditional two-step synthesis involving bromides as it is more efficient and uses inexpensive and less toxic materials. It is suggested that these compounds will be useful for studying permeability of the blood-brain barrier in cerebrotendinous xanthomatosis (CTX). A facile and regiocontrolled procedure for the preparation of 5β-cholestane-3α, 7α, 12α, 25-tetrol-3-O-β-D-glucuronide and its corresponding C-26 analogue is described. The method involves direct coupling of bile alcohols, namely, 5β-cholestane-3α,7α,12α,25-tetrol and 24-nor-5β-cholestane-3α,7α,12α 25-tetrol to methyl (tetra-O-acetyl-β-D-glucopyranuronate) in the presence of a Lewis acid, tin(IV) chloride, in dichloromethane. The resulting anomeric pairs of 1,2-trans- and 1,2-cis-glucuronides of tetrols were resolved by analytical and preparative thin-layer chromatography, and their identities were established by high-resolution 1H NMR spectroscopy and by chemical-ionization and fast-atom-bombardment mass spectrometry. The method described has a practical advantage over the traditional two-step synthesis involving bromides as it is more efficient and uses inexpensive and less toxic materials. It is suggested that these compounds will be useful for studying permeability of the blood-brain barrier in cerebrotendinous xanthomastosis (CTX).
Design, synthesis and biological evaluation of carbohydrate-based sulphonamide derivatives as topical antiglaucoma agents through selective inhibition of carbonic anhydrase II
Fan, Zhanfang,Guo, Chun,Hou, Zhuang,Li, Chuanchao,Lin, Bin,Liu, Yang,Liu, Yichuang,Wang, Yitong,Zhang, Miao
, p. 383 - 390 (2019/12/30)
A series of new carbohydrate-based sulphonamide derivatives were designed, synthesised by employing the so-call ‘sugar-tail’ approach. The compounds were evaluated in vitro against a panel of CAs. Compared to their parent compound p-sulfamoylbenzoic acid, these compounds showed nearly 100-fold improvement in their binding affinities against hCA II in vitro. All of compounds showed great water solubility and the pH value of their water solutions of compounds is 7.0. Such properties are advantageous to make them much less irritating to the eye when applied topical glaucomatous drugs, compared to the relatively highly acidic dorzolamide preparations (pH 5.5). Notably, compounds 7d, 7 g, 7 h demonstrated to topically lower intraocular pressure (IOP) in glaucomatous animals better than brinzolamide when applied as a 1% solution directly into the eye. Low cytotoxicity on human cornea epithelial cell was observed in the tested concentrations by the MTT assay.
Efficient Synthesis of Muramic and Glucuronic Acid Glycodendrimers as Dengue Virus Antagonists
García-Oliva, Cecilia,Cabanillas, Alfredo H.,Perona, Almudena,Hoyos, Pilar,Rumbero, ángel,Hernáiz, María J.
supporting information, p. 1588 - 1596 (2020/02/05)
Carbohydrates are involved in many important pathological processes, such as bacterial and viral infections, by means of carbohydrate-protein interactions. Glycoconjugates with multiple carbohydrates are involved in multivalent interactions, thus increasing their binding strengths to proteins. In this work, we report the efficient synthesis of novel muramic and glucuronic acid glycodendrimers as potential Dengue virus antagonists. Aromatic scaffolds functionalized with a terminal ethynyl groups were coupled to muramic and glucuronic acid azides by click chemistry through optimized synthetic strategies to afford the desired glycodendrimers with high yields. Surface Plasmon Resonance studies have demonstrated that the compounds reported bind efficiently to the Dengue virus envelope protein. Molecular modelling studies were carried out to simulate and explain the binding observed. These studies confirm that efficient chemical synthesis of glycodendrimers can be brought about easily offering a versatile strategy to find new active compounds against Dengue virus.
