Development of hypoxia-inducible factor (HIF)-1α inhibitors: Effect of ortho-carborane substituents on HIF transcriptional activity under hypoxia
摘要:
A series of substituted ortho-carboranylphenoxyacetanilides were synthesized and evaluated for their ability to inhibit hypoxia-induced HIF-1 transcriptional activity using a cell-based reporter assay in HeLa cells expressing the HRE-dependent firefly luciferase reporter construct (HRE-Luc) and constitutively expressing CMV-driven Renilla luciferase reporter, and their ability to inhibit cell growth (GI(50)) using the MTT assay. Among the compounds synthesized, 1g and 1l showed significant inhibition of hypoxia-induced HIF-1 transcriptional activity (IC50: 1.9 +/- 0.4 and 1.4 +/- 0.2 mu M, respectively). Both compounds suppressed HIF-1 alpha accumulation in a concentration-dependent manner. The porcine heart malate dehydrogenase (MDH) refolding assay revealed that compound 1l inhibited human Hsp60 chaperone activity (IC50: 6.80 +/- 0.25 mu M) and this inhibition activity was higher than that of ETB (IC50: 10.9 +/- 0.63 mu M). (c) 2012 Elsevier Ltd. All rights reserved.
Synthesis and biological evaluation of meta-carborane-containing phenoxyacetanilides as inhibitors of hypoxia-inducible factor (HIF)-1 transcriptional activity
摘要:
meta-Carboranylphenoxyacetanilides were synthesized by copper catalyzed coupling reaction of meta-carborane and phenyl iodides. The synthesized compounds were evaluated for their ability to inhibit hypoxia-induced HIF-1 transcriptional activity using a cell-based reporter gene assay. Among the compounds synthesized, meta-carborane containing phenoxyanilides 2d and 2h, which have an isobutyl group on meta-carborane, exhibited significant inhibition of hypoxia-induced HIF-1 transcriptional activity toward HeLa cell-based reporter gene assay with the IC50 values of 0.73 and 0.55 mu M, respectively. (C) 2015 Elsevier B.V. All rights reserved.
The invention provides compounds of Formula (I)
pharmaceutically acceptable salts, pro-drugs, biologically active metabolites, stereoisomers and isomers thereof wherein the variable are defined herein. The compounds of the invention are useful for treating immunological and oncological conditions.
Development of hypoxia-inducible factor (HIF)-1α inhibitors: Effect of ortho-carborane substituents on HIF transcriptional activity under hypoxia
作者:Hiroyuki Nakamura、Yuka Yasui、Minako Maruyama、Hidemitsu Minegishi、Hyun Seung Ban、Shinichi Sato
DOI:10.1016/j.bmcl.2012.11.081
日期:2013.2
A series of substituted ortho-carboranylphenoxyacetanilides were synthesized and evaluated for their ability to inhibit hypoxia-induced HIF-1 transcriptional activity using a cell-based reporter assay in HeLa cells expressing the HRE-dependent firefly luciferase reporter construct (HRE-Luc) and constitutively expressing CMV-driven Renilla luciferase reporter, and their ability to inhibit cell growth (GI(50)) using the MTT assay. Among the compounds synthesized, 1g and 1l showed significant inhibition of hypoxia-induced HIF-1 transcriptional activity (IC50: 1.9 +/- 0.4 and 1.4 +/- 0.2 mu M, respectively). Both compounds suppressed HIF-1 alpha accumulation in a concentration-dependent manner. The porcine heart malate dehydrogenase (MDH) refolding assay revealed that compound 1l inhibited human Hsp60 chaperone activity (IC50: 6.80 +/- 0.25 mu M) and this inhibition activity was higher than that of ETB (IC50: 10.9 +/- 0.63 mu M). (c) 2012 Elsevier Ltd. All rights reserved.
Synthesis and biological evaluation of meta-carborane-containing phenoxyacetanilides as inhibitors of hypoxia-inducible factor (HIF)-1 transcriptional activity
meta-Carboranylphenoxyacetanilides were synthesized by copper catalyzed coupling reaction of meta-carborane and phenyl iodides. The synthesized compounds were evaluated for their ability to inhibit hypoxia-induced HIF-1 transcriptional activity using a cell-based reporter gene assay. Among the compounds synthesized, meta-carborane containing phenoxyanilides 2d and 2h, which have an isobutyl group on meta-carborane, exhibited significant inhibition of hypoxia-induced HIF-1 transcriptional activity toward HeLa cell-based reporter gene assay with the IC50 values of 0.73 and 0.55 mu M, respectively. (C) 2015 Elsevier B.V. All rights reserved.