28541-71-1Relevant academic research and scientific papers
An improved helferich method for the α/β-stereoselective synthesis of 4-methylumbelliferyl glycosides for the detection of microorganisms
Wei, Xianhu,Ma, Yanxia,Wu, Qingping,Zhang, Jumei,Cai, Zhihe,Lu, Mianfei,Ferro, Vito
, p. 21681 - 21699 (2016/01/25)
An improved Helferich method is presented. It involves the glycosylation of 4-methyl-umbelliferone with glycosyl acetates in the presence of boron trifluoride etherate combined with triethylamine, pyridine, or 4-dimethylaminopyridine under mild conditions, followed by deprotection to give fluorogenic 4-methylumbelliferyl glycoside substrates. Due to the use of base, the glycosylation reaction proceeds more easily, is uncommonly α- or β-stereoselective, and affords the corresponding products in moderate to excellent yields (51%-94%) under appropriate conditions.
Profiling of glycosidase activities using coumarin-conjugated glycoside cocktails
Park, Sungjin,Shin, Injae
, p. 619 - 622 (2007/10/03)
Glycosidases are a large subgroup of carbohydrate-processing enzymes that hydrolytically cleave the glycosidic bond. Glycans formed by the action of glycosidases are involved in various biological processes. Genetic abnormalities in glycosidases are associated with inherited diseases. Thus, characterization of the catalytic activities of glycosidases is of great importance. Herein, we describe a simple and rapid approach for determining glycosidase activity profiles using coumarin-conjugated glycoside cocktails.
