A nitrogen-containing bicyclic heterocyclic compound represented by the following formula (1) is provided. When the compound or a salt thereof is administered to a human being or an animal, the compound has a strong antagonistic action against EP1 receptors, and is useful, for example, as an active ingredient of a medicine for the prevention and/or treatment of overactive bladder. The compound is also useful as an active ingredient of a medicine for the prevention and/or treatment of symptoms such as frequency urinary, urinary urgency, or urinary incontinence.
A nitrogen-containing bicyclic heterocyclic compound represented by the following formula (1) is provided. When the compound or a salt thereof is administered to a human being or an animal, the compound has a strong antagonistic action against EP1 receptors, and is useful, for example, as an active ingredient of a medicine for the prevention and/or treatment of overactive bladder. The compound is also useful as an active ingredient of a medicine for the prevention and/or treatment of symptoms such as frequency urinary, urinary urgency, or urinary incontinence.
Discovery of 2-(1H-indazol-1-yl)-thiazole derivatives as selective EP1 receptor antagonists for treatment of overactive bladder by core structure replacement
We have designed a series of potent EP1 receptor antagonists. These antagonists are a series of 2-(1H-indazol-1-yl)-thiazoles in which the corestructure was replaced with pyrazole-phenyl groups. In preliminary conscious rat cystometry experiments, two representative candidates, 2 and 22, increased bladder capacity. In particular, the increase using 22 was approximately 2-fold that of the baseline