Novel estrogen receptor (ER) modulators containing various hydrophobic bent-core structures
作者:Kiminori Ohta、Takumi Ogawa、Asako Kaise、Yasuyuki Endo
DOI:10.1016/j.bmc.2014.04.022
日期:2014.7
We previously discovered m-carborane-containing estrogen receptor (ER) modulator 4, which exhibits weak ER-agonistic and antagonistic activities in transactivation assays. With the aim of developing novel ER partial agonists, we designed and synthesized various analogues of 4 with a bent-core structure, that is, pseudo cyclic structure (5), tetrahydropyrimidinone (6), m-benzene (7), adamantane (8), and 9,1 0-dimethyl-m-carborane (9), in place of the m-carborane moiety. Compound 9 showed greater binding affinity than 4 in ER-binding assay using [6,7-H-3-17 beta-estradiol and was a more effective partial agonist than 4 in MCF-7 cell proliferation assay. It appears to be a promising candidate as a selective ER modulator (SERM). (C) 2014 Elsevier Ltd. All rights reserved.