| 摘要 |
This invention encompasses compounds of formula (I) and the pharmaceutically acceptable salts thereof, wherein X1, X2, X3 represent organic or inorganic susbtituents, n is 1, 2, or 3, R1-R4 are hydrogen or organic substituents, and B is nitrogen, carbon, sulfur or oxygen, useful in the diagnosis and treatment of feeding disorders such as obesity and bulimia and cardiovascular diseases such as essential hypertension and congestive heart failure due to the binding of these compounds to human Neuropeptide Y1 receptors.
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