Abstract
In a previous paper we reported that 2-(p-hydroxyarylbutadienyl)benzoxazoles are highly potent 5-lipoxygenase inhibitors. We synthesized their ethenyl homologues and benzothiazole derivatives, and evaluated their 5-lipoxygenase inhibitory activity in vitro with cell-free rat basophilic leukemia (RBL-1). In most cases the replacement of benzoxazolyl with benzothiazolyl resulted in an enhancement of the activity. All compounds with butadienyl spacers tested herein exhibited strong inhibitory activities. While most of the ethenyl homologues showed weaker activities than their corresponding butadienyl homologues, some ethenyl compounds in the benzothiazole derivatives were found to be as potent as their corresponding butadienyl homologues. The inhibitory activity was also affected by the variation in the p-hydroxyaryl functionality.
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Schedule a callMore From: Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan
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