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Synthesis of substance-P C-terminal hexapeptide analogues and their biological activity. Analogues with antagonistic activity without containing D-amino acids


Synthesis of substance-P C-terminal hexapeptide analogues and their biological activity. Analogues with antagonistic activity without containing D-amino acids



European Journal of Medicinal Chemistry 29(9): 667-673



ISSN/ISBN: 0223-5234

DOI: 10.1016/0223-5234(94)90028-0

Analogues of the C-terminal hexapeptide of substance P have been synthesized in which each amino-acid residue was replaced by the bulky and strong lipophilic residue Asp(OBzl). The amino-acid residue of other selected places has also been replaced by Glu(OBzl) or Glu(OCH-3). The resulting analogues were assayed for agonistic and antagonistic activity in 3 biological preparations, GPI, RC and RPV, which have been proposed as representative of the NK-1, NK-2 and NK-3 receptors, respectively. Although none of the analogues contained D-amino acids, they showed antagonistic activity according to the receptor type. Structure-activity relationships are also reported.

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Accession: 009509997

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