advertisement
Structure-activity relationships (SAR) of fused 1,2,4-triazolo[1,5-c ]pyrimidine were performed. Various substituents were introduced into the heterocyclic ring to improve the potency of adenosine A3 receptor binding affinity and A3-selectivity against other subtypes. Potent and selective A3 receptor antagonists were identified and were evaluated in a monkey model of intraocular pressure by eye-drop administration. As a result, compound 1c (OT-7999) was found to significantly decrease intraocular pressure in the animal model.
T. Okamura, Pharmaceutical Technology Institute, Otsuka Pharmaceutical Fact., Inc. T., Muya-cho, Naruto, Tokushima 772-8601
11.14 Investigational drugs; pharmacological experiments (Part of: 11 Medical treatment)