Synthesis of, and lack of inhibition of a rhamnosidase by, both enantiomers of deoxyrhamnojirimycin and rhamnolactam: β-mannosidase inhibition by δ-lactams
作者:Anthony J. Fairbanks、Neil C. Carpenter、George W.J. Fleet、Nigel G. Ramsden、I. Cenci de Bello、Bryan G. Winchester、Samer S. Al-Daher、Gerry Nagahashi
DOI:10.1016/0040-4020(92)85012-4
日期:1992.1
Synthesis of bothenantiomers of deoxyrhamnojirimycin and rhamnonolactam from D- and L-gulonolactones are described. The effects as inhibitors of the enantiomeric deoxyrhamnojirimycins and rhamnonolactams on human liver glycosidases are compared with deoxymannojirimycin and mannonolactam. No significant inhibition of the activity of naringinase (an α-L-rhamnosidase) was caused by any of these compounds
Tetrazoles of manno- and rhamno-pyranoses: Contrasting inhibition of mannosidases by [4.3.0] but of rhamnosidase by [3.3.0] bicyclic tetrazoles
作者:Benjamin G. Davis、Tilmann W. Brandstetter、Lucy Hackett、Bryan G. Winchester、Robert J. Nash、Alison A. Watson、Rhodri C. Griffiths、Colin Smith、George W.J. Fleet
DOI:10.1016/s0040-4020(99)00137-4
日期:1999.4
The synthesis of tetrazoles derived from D-manno and D-rhamnopyranose from L-gulonolactone and of L-rhamnopyranose from D-gulonolactone is described. These and other materials are assessed as inhibitors of glycosidases. The [4.3.0] tetrazoles of D-manno- and D-rhamnopyranose are inhibitors of human liver α-mannosidase. In contrast the D-furanose analogues show no inhibitory activity whilst the [3.3