New multifunctional chiral dendrimers (DOI: 10.2436/20.2003.01.26)
Keywords:
dendrimers, cyclobutans, chirality, !-amino acids, peptides.Abstract
Dendrimers are highly-branched molecular (nano)architectures of well defined size and number of terminal groups. These molecules have potential applications as biomaterials, drugs or hosts. In the present work, new chiral multifunctional cyclobutane dendrimers have been synthesized through a convergent approach. This synthetic methodology, which consists in the attachment of pre-synthesized dendrons to the core, leads to dendrimers of monodisperse molecular weight which are easier to purify. In our laboratory 1,3,5-trisubstituted benzenes have been used as cores, whereas a multifunctional cyclobutane !,"-amino diacid and the tetrapeptide resulting from the coupling of the !,"-amino diacid an three conveniently protected GABA (gamma-aminobutiric acid) residues, have been used as dendrons.
Structural properties of these molecules and their possible applications in the field of new materials are under study.
Keywords: dendrimers, cyclobutans, chirality, !-amino acids,
peptides.
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