38954-67-5Relevant articles and documents
Synthesis, PASS predication, in vitro antimicrobial evaluation and pharmacokinetic study of novel n-octyl glucopyranoside esters
Matin, Mohammed M.,Bhattacharjee, Sreebash C.,Chakraborty, Priyanka,Alam, Muhammad S.
supporting information, (2019/10/10)
Octyl β-D-glucopyranoside (OBG), prepared from D-glucose and octan-1-ol employing MW method, was subjected to direct dimolar valeroylation in pyridine at room temperature (25 °C) with valeroyl chloride. This mainly furnished the corresponding 3,6-di-O-valeroate in 57% yield indicating the regioselectivity at C-6 and C-3 positions. For structural elucidation and to get newer glucopyranosides of potential antimicrobial 3,6-di-O-valeroate was further converted into four novel 2,4-di-O-acyl esters reasonably in good yields. Per-O-acetate and per-O-benzoate of OBG were also prepared for SAR study. PASS predication and in vitro antimicrobial studies established them as better antifungal agent than that of antibacterial. SAR study along with AdmetSAR and SwissADME suggested that incorporation of alkanoyl and aromatic ester groups on octyl glucopyranoside core increase antimicrobial potentiality in very low concentration (10 μgmL?1). Molecular docking revealed that novel 2,4-di-O-tosyl ester and 2,3,4,6-tetra-O-benzoyl ester may act as competitive inhibitors of lanosterol 14-alpha demethylase.
N-alkyl - β - D - glucopyranoside synthetic method
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Paragraph 0024; 0026, (2017/12/06)
The invention discloses a synthesizing method of n-alkyl-beta-D-glucopyranoside. The method includes the following steps of dissolving fully-acetylated glucopyranose, n-alkyl alcohol and anhydrous stannic chloride in anhydrous methylene dichloride, stirring the mixture to have a reaction for 20 min to 70 min at the room temperature, washing the mixture through a saturated sodium carbonate solution, collecting organic phases, conducting reduced pressure distillation to obtain 1-n-alkyl-2,3,4,6-tetraacetyl-beta-D-glucopyranoside, dissolving the 1-n-alkyl-2,3,4,6-tetraacetyl-beta-D-glucopyranoside in methyl alcohol, adding sodium methylate to adjust the pH value to 9, having a reaction for 1.5 h at the room temperature, adjusting the pH value to be neutral through strong acid cation exchange resin, conducting filtering, steaming filtrate to obtain solvent, and drying the solvent to obtain the n-alkyl-beta-D-glucopyranoside. The n-alkyl is n-alkyl of C8-C12. The method is simple, raw materials are easy to obtain, cost is low, reaction temperature is moderate and easy to control, the method is environmentally friendly, and the prepared beta-configuration glucopyranoside is high in purity.
Use of iodine for efficient and chemoselective glycosylation with glycosyl ortho-alkynylbenzoates as donor in presence of thioglycosides
Dutta, Samrat,Sarkar, Swarbhanu,Gupta, Shyam Ji,Sen, Asish Kumar
supporting information, p. 865 - 870 (2013/02/25)
A novel and high yielding glycosylation protocol with glycosyl ortho-alkynylbenzoates as donors and iodine as promoter is described. The donors are stable and can be chemoselectively activated in the presence of thioethyl and thiophenyl glycosides. The application of this methodology in one-pot consecutive glycosylation reaction is described.
