Synthesis of oligomeric assemblies of a platelet-binding key disaccharide in heparin and their biological activities
摘要:
Heparin, highly sulfated glycosaminoglycan, binds to platelets. A key disaccharide unit in heparin was previously found to be responsible for the binding, and the Frequency of the disaccharide unit was important for the binding potency. A newly developed method based on the reductive amination was effectively applied to prepare structurally defined oligomeric assemblies possessing multiple units of the key disaccharide. From their platelet-binding activities measured by the competitive binding assay, the enhancement of the activity was clearly observed with increasing number of the key disaccharide. (C) 2001 Elsevier Science Ltd. All rights reserved.
An efficient method for the assembly of sulfated oligosaccharides using reductive amination
摘要:
A generally applicable efficient method was developed for assembly of structurally defined sulfated oligosaccharides. Using a reductive amination reaction at low pH with newly designed linkers possessing multiple aromatic amino groups, facile preparations of oligosaccharide assemblies were achieved without any alteration in the sulfated oligosaccharide parts. (C) 2001 Elsevier Science Ltd. All rights reserved.