摘要:
Benzopyrans are selective estrogen receptor (ER) 0 agonists (SERBAs), which bind the ER subtypes a and in opposite orientations. Here we describe structure-activity relationship studies that led to the discovery of bezopyran 5b. X-ray crystal structures of 5b and a non-selective analog 5c in ER alpha help explain the observed selectivity of the benzopyran platform. (c) 2007 Elsevier Ltd. All rights reserved.