Evolution of a series of non-quinoline leukotriene D4 receptor antagonist; synthesis and sar of benzothiazoles and thiazoles substituted benzyl alcohols as potent LTD4 antagonists

Replacement of the quinoline pharmacophore of verlukast by alkylthiazoles and benzothiazoles has lead to the discovery of a new series of potent and orally active LTD4 receptor antagonists. The synthesis and structure activity relationships of this series of compounds are described.