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J Med Chem. 2006 Nov 30;49(24):7160-8.

Selective angiotensin II AT2 receptor agonists: arylbenzylimidazole structure-activity relationships.

Author information

1
Department of Medicinal Chemistry, BMC, Uppsala University, P.O. Box 574, SE-751 23 Uppsala, Sweden.

Abstract

Structural alterations in the 2- and 5-positions of the first drug-like selective angiotensin II AT2 receptor agonist (1) have been performed. The imidazole ring system was proven to be a strong determinant for the AT2 selectivity, and with few exceptions all variations gave good AT2 receptor affinities and with retained high AT2/AT1 selectivities. On the contrary to the findings with AT1 receptor agonists, the impact of structural modifications in the 5-position of the AT2 selective compounds were less pronounced regarding activation of the AT2 receptor. The butyloxyphenyl (56) and the propylthienyl (50) derivatives were found to exert a high agonistic effect as deduced from their capacity to induce neurite elongation in neuronal cells, as does angiotensin II.

PMID:
17125268
DOI:
10.1021/jm0606185
[Indexed for MEDLINE]

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