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Bioorg Med Chem Lett. 2010 Sep 1;20(17):5302-7. doi: 10.1016/j.bmcl.2010.06.136. Epub 2010 Jul 1.

A physical properties based approach for the exploration of a 4-hydroxybenzothiazolone series of beta2-adrenoceptor agonists as inhaled long-acting bronchodilators.

Author information

1
Novartis Institutes for BioMedical Research, Respiratory Diseases Area, Horsham, United Kingdom.

Abstract

The chiral synthesis of a 4-hydroxybenzothiazolone based series of beta(2)-adrenoceptor agonists is described. Using this methodology a library of N-substituted analogues were prepared for the rapid identification of leads with the potential to be fast onset and long-acting inhaled bronchodilators with improved therapeutic margins. The design of the library to achieve the targeted profile was based upon lipophilicity and metabolism based hypotheses. This approach identified beta-phenethyl, alpha-substituted cyclopentyl and monoterpene N-substituents to be of particular interest for further evaluation, as exemplified by structures 19, 29 and 33, respectively.

PMID:
20655218
DOI:
10.1016/j.bmcl.2010.06.136
[Indexed for MEDLINE]

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