The syntheses of several heparin-like glycoconjugates (i.e., 16a-f) co
ntaining identical AT III binding domains (ABD) and spacers but differ
ent thrombin binding domains (TBDs) are described.(1) Biological activ
ities of conjugates 16a-f indicate that the thrombin inhibitory activi
ty is mainly determined by the charge density of the TBD moiety. (C) 1
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