摘要:
The synthesis and the EPI receptor binding affinity of 2,3-diarylthiophene derivatives are described. The evaluation of the structure-activity relationship (SAR) in this series led to the identification of compounds 4, 7, and 12a, which exhibit high affinity for the human EPI receptor and a selectivity greater than 100-fold against the EP2, EP3, EP4, DP, FP, and IP receptors and greater than 25-fold versus the TP receptor. These three antagonists present good pharmacokinetics in rats and significant differences in the way they are distributed in the brain. (C) 2004 Elsevier Ltd. All rights reserved.