198402-60-7Relevant articles and documents
Synthesis of precipitating chromogenic/fluorogenic β-glucosidase/β-galactosidase substrates by a new method and their application in the visual detection of foodborne pathogenic bacteria
Wei, Xianhu,Wu, Qingping,Zhang, Jumei,Zhang, Youxiong,Guo, Weipeng,Chen, Moutong,Gu, Qihui,Cai, Zhihe,Lu, Mianfei
, p. 103 - 106 (2016/12/27)
We developed a new efficient method for the synthesis of important indoxyl glycoside substrates for β-glucosidase and β-galactosidase by using 1-acetylindol-3-ones as intermediates. This method was used to synthesise novel precipitating fluorogenic substrates for β-glucosidase based on 2-(benzothiazol-2′-yl)-phenols. We also assessed the application of these substrates in the detection of foodborne pathogenic bacteria.
Indoxylic acid esters as convenient intermediates towards indoxyl glycosides
Boettcher, Stephan,Thiem, Joachim
, p. 564 - 574 (2014/02/14)
Indoxylic acid methyl and allyl esters with varied halide-substitution patterns were obtained in excellent yields using a scalable route. Phase-transfer glycosylation of these key intermediates was carried out with various glycosyl halides. Subsequent mild silver-mediated decarboxylation followed by Zemplen deacetylation led to indoxyl glycosides in good overall yields. Indoxyl glycosides are well-established and widely used tools for enzyme screening and enzyme-activity monitoring. In the past, their synthesis has been difficult, so this new approach has led to a variety of useful structures. Indoxyl glycosides with varied halide-substitution patterns were synthesized using indoxylic acid esters as key intermediates. Glycosylation under phase-transfer conditions, ester cleavage, and mild decarboxylation led to the indoxyl glycosides in good yields. This approach enables access to a number of different indoxyl compounds. Copyright
