Determination of protonation states of iminosugar–enzyme complexes using photoinduced electron transfer
作者:Bo Wang、Jacob Ingemar Olsen、Bo W. Laursen、Jens Christian Navarro Poulsen、Mikael Bols
DOI:10.1039/c7sc01540b
日期:——
A series of N-alkylated analogues of 1-deoxynojirimycin containing a fluorescent 10-chloro-9-anthracene group in the N-alkyl substituent were prepared. The anthracene group acted as a reporting group for protonation at the nitrogen in the iminosugar because an unprotonated amine was found to quench fluorescence by photoinduced electron transfer. The new compounds were found to inhibit β-glucosidase
Synthesis of Isofagomine Derivatives as New Fluorescence pH Indicators/Glycosidase Inhibitors
作者:Bo Wang、Sidsel Ammitzbøll Bogh、Jens Christian Navarro Poulsen、Bo W. Laursen、Mikael Bols
DOI:10.1002/ejoc.202000522
日期:2020.7.15
To check the pH conditions in the active site of an enzyme an inhibitor with on/off fluorescence upon protonation is required. Herein, the potent glycosidaseinhibitor isofagomine is converted into “glycosidase fluorescence indicator”.
申请人:SOLARCHEM RESEARCH,
A DIVISION OF BROLOR INVESTMENTS LIMITED
公开号:EP0252740A1
公开(公告)日:1988-01-13
Photochemical conversion of tachysterols to previtamins is conducted in the presence of a polymeric photosensitizer which has the appropriate chromophore groups, e.g. anthracene groups, attached to a medium or high molecular weight, substantially uncrosslinked polymer backbone. The polymeric photosensitizer is soluble in solvents normally used for conducting the photochemical reaction (diethyl ether, dioxane, THF, t.butyl methyl ether) but insoluble in lower alcohols and hydrocarbons, so that it may be readily and simply recovered from the product mixture by use of such non-solvents.