Structure-activity relationships of estrogenic ligands: synthesis and evaluation of (17.alpha.,20E)- and (17.alpha.,20Z)-21-halo-19-norpregna-1,3,5(10),20-tetraene-3,17.beta.-diols
作者:Elio Napolitano、Rita Fiaschi、Robert N. Hanson
DOI:10.1021/jm00113a012
日期:1991.9
affinity (RBA) for the estrogen receptor with use of a rat uterine preparation. The results demonstrated a marked difference between the E and Z isomers and among the halogen employed. The Z isomers possessed significantly higher RBA values and the larger halogens (I, Br) were more effective than the smaller Cl substituent. These results modify the previous interpretations of estrogen-receptor binding for