Structure–activity relationships of 6-(aminomethylphenoxy)-benzoxaborole derivatives as anti-inflammatory agent
摘要:
A series of novel 6-(aminomethylphenoxy)benzoxaborole analogs was synthesized for the investigation of the structure-activity relationship of the inhibition of TNF-alpha, IL-1beta, and IL-6, from lipopolysaccharide stimulated peripheral blood mononuclear cells. Compounds 9d and 9e showed potent activity against all three cytokines with IC50 values between 33 and 83 nM. Chloro substituted analog 9e (AN3485) is considered to be a promising lead for novel anti-inflammatory agent with a favorable pharmacokinetic profile. (C) 2013 Elsevier Ltd. All rights reserved.
Synthesis and SAR of novel benzoxaboroles as a new class of β-lactamase inhibitors
摘要:
A new class of benzoxaborole beta-lactamase inhibitors were designed and synthesized. 6-Aryloxy benzoxaborole 22 inhibited AmpC P99 and CMY-2 with K-i values in the low nanomolar range. Compound 22 restored antibacterial activity of ceftazidime against Enterobacter cloacae P99 expressing AmpC, a class C beta-lactamase enzyme. The SAR around the arylbenzoxaboroles, which included the influence of linker and substitutions was also established. (C) 2011 Elsevier Ltd. All rights reserved.
Transition-metal-free, one-pot synthesis of benzoxaboroles from <i>o</i>-bromobenzaldehydes <i>via</i> visible-light-promoted borylation
作者:Jinghan Luo、Xingxing Jia、Yanjun Hu、Jianchao Chen、Tiemin Sun
DOI:10.1039/d1ob01853a
日期:——
A novel and simple one-pot stepwise method to synthesize benzoxaboroles was demonstrated. This step-by-step synthetic method includes photocatalytic boronization with phenothiazine as a photocatalyst and sequential water-induced reduction in the presence of bis(pinacolato)diboron. A series of o-bromobenzaldehydes were well-tolerated under the standard conditions. In addition, this method has been successfully