Novel estrogen receptor (ER) modulators containing various hydrophobic bent-core structures
摘要:
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.
Novel estrogen receptor (ER) modulators containing various hydrophobic bent-core structures
摘要:
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.
Direct Aryl C−H Amination with Primary Amines Using Organic Photoredox Catalysis
作者:Kaila A. Margrey、Alison Levens、David A. Nicewicz
DOI:10.1002/anie.201709523
日期:2017.12.4
photoredox catalyst under an aerobic atmosphere. A wide variety of primary amines, including amino acids and more complex amines are competent coupling partners. Various electron‐rich aromatics and heteroaromatics are useful scaffolds in this reaction, as are complex, biologically active arenes. We also describe the ability to functionalize arenes that are not oxidized by an acridinium catalyst, such as