Synthesis of C<sub>2</sub>-Symmetrical Cyclic Guanidino-Sugars from d-Mannitol
作者:Laurence Gauzy、Yves Le Merrer、Jean-Claude Depezay
DOI:10.1055/s-1998-3129
日期:1998.4
An efficient method für the synthesis of C2-symmetrical cyclic guanidino-sugars has been developed from 1,2:5,6-dianhydro-3,4-O-methylethylidene-d-mannitol or l-iditol.
Synthesis of C 2 -symmetric guanidino-sugars as potent inhibitors of glycosidases
作者:Yves Le Merrer、Laurence Gauzy、Christine Gravier-Pelletier、Jean-Claude Depezay
DOI:10.1016/s0968-0896(99)00294-1
日期:2000.2
A series of enantiomerically pure C-2-Symmetric guanidino-sugars was synthesized from D-mannitol. The first method described involves direct opening of a bis-epoxide by guanidine, whereas the second one deals with a mercury-catalyzed transformation of a cyclic thiourea into a N,N,N"-trisubstituted guanidine as a key step. The biological activity of these compounds towards several glycosidases has been evaluated. One of them (5) was found to selectively inhibit alpha-L-fucosidase of bovin kidney (2.8 mu M). (C) 2000 Elsevier Science Ltd. All rights reserved.