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Bioorg Med Chem. 2011 Oct 15;19(20):6026-32. doi: 10.1016/j.bmc.2011.08.043. Epub 2011 Aug 26.

The discovery of long-acting saligenin β₂ adrenergic receptor agonists incorporating a urea group.

Author information

1
Department of Medicinal Chemistry, GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, United Kingdom. pan.a.procopiou@gsk.com

Abstract

A series of novel, potent and selective human β(2) adrenoceptor agonists incorporating a urea moiety on the terminal right-hand side phenyl ring of (R)-salmeterol is presented. Urea 9j had long duration of action in vitro on guinea pig trachea, and also in vivo similar to that of salmeterol. It had lower oral absorption and bioavailability than salmeterol in both rat and dog. It had a turnover ratio similar to salmeterol, with no evidence for formation of any aniline metabolites in human liver microsomes and hepatocytes. However no crystalline salts suitable for inhaled delivery were identified.

PMID:
21925889
DOI:
10.1016/j.bmc.2011.08.043
[Indexed for MEDLINE]

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