Inhibitors of <i>endo</i>-α-mannosidase. Part II. 1-Deoxy-3-<i>O</i>-(α-<scp>D</scp>-glucopyranosyl)-mannojirimycin and congeners modified in the mannojirimycin unit
作者:Ulrike Spohr、Mimi Bach、Robert G. Spiro
DOI:10.1139/v93-240
日期:1993.11.1
all hydroxylgroups of the deoxymannojirimycin unit of 9, namely, OH-2, OH-4, OH-6, and also the NH-5 group, interact with charged and polar groupings of the enzyme, since deoxygenations and alkylations abolished or significantly reduced activities. Conformationalanalysis of 9 and some of its congeners based on NMR chemical shifts, experimental and theoretical nuclearOverhauserenhancements, and
Synthesis of 1,5-dideoxy-3-O-(α-D-mannopyranosyl)-1,5-imino-D-mannitol and 1,5-dideoxy-3-O-(α-D-glucopyranosyl)-1,5-imino-D-mannitol: Powerful inhibitors of endomannosidase
作者:Helen Ardron、Terry D. Butters、Frances M. Platt、Mark R. Wormald、Raymond A Dwek、George W.J. Fleet、Gary S. Jacob
DOI:10.1016/s0957-4166(00)82250-8
日期:1993.1
The synthesis and conformations of 3-O-methylDMJ, 3-O-(alpha-D-glucopyranosyl)-DMJ (Glcalpha1,3DMJ), and 3-O-(alpha-D-mannopyranosyl)-DMJ (Manalpha1,3DMJ) are described. Manalpha1,3DMJ and Glcalpha1,3DMJ are shown to be very powerful inhibitors of an endomannosidase. The potential use of these compounds in both probing the pathways of N-linked glycoprotein processing and in the chemotherapy of some viral diseases is discussed.
FLEET, GEORGE W. J.;RAMSDEN, NIGEL G.;WITTY, DAVID R., TETRAHEDRON., 45,(1989) N 1, C. 327-336
作者:FLEET, GEORGE W. J.、RAMSDEN, NIGEL G.、WITTY, DAVID R.
DOI:——
日期:——
A practical synthesis of deoxymannojirimycin and of (2s,3R,4R,5R)-3,4,5-trihydroxypipecolic acid from D-glucose
作者:George W.J. Fleet、Nigel G. Ramsden、David R Witty
DOI:10.1016/0040-4020(89)80060-2
日期:1989.1
Deoxymannojirimycin [1,5-dideoxy-1,5-imino-D-mannitol] may be prepared in moderate amounts in an overall yield of 35% in ten steps from diacetone glucose; the key step is formation of the piperidine ring by intramolecular nucleophilic displacement of a triflate at C-2 of a methyl glucofuranoside by a nitrogen function at C-6, irrespective of the anomeric configuration of the sugar. A synthesis of (2S