Synthesis of a novel series of 2-alkylthio substituted naphthoquinones as potent acyl-CoA: Cholesterol acyltransferase (ACAT) inhibitors
作者:Kyeong Lee、Soo Hyun Cho、Jee Hyun Lee、Jail Goo、Sung Yoon Lee、Shanthaveerappa K. Boovanahalli、Siok Koon Yeo、Sung-Joon Lee、Young Kook Kim、Dong Hee Kim、Yongseok Choi、Gyu-Yong Song
DOI:10.1016/j.ejmech.2013.01.020
日期:2013.4
naphthoquinone derivatives as potent ACATinhibitors, which were obtained through structural variations of previously disclosed lead 1. Several analogs represented by 3i–l, 4k–m, 6a–n, 7a, and 7i demonstrated potent human macrophage ACAT inhibitory activity by a cell-based reporter assay with human HepG2 cell lines. In particular, compounds 4l and 6j emerged as highly potent inhibitors, exhibiting significantly
Visible Light-Mediated Thiolation of Substituted 1,4-Naphthoquinones Using Eosin Y as a Photoredox Catalyst
作者:Bhawana Nagar、Basab Bijayi Dhar
DOI:10.1021/acs.joc.1c02924
日期:2022.3.4
(isolated yield of ≥75%) for thiolation of substituted 1,4-naphthoquinones using various aromatic and aliphatic thiols at room temperature is described herein. The rate-determining step of the reaction is thiyl radical generation, and the radical was characterized by high-resolution mass spectrometry. Cost effectiveness, operational simplicity, a short reaction time, high atom economy, and a very good yield
在伊红 Y 存在下,本文描述了在室温下使用各种芳香族和脂肪族硫醇对取代的 1,4-萘醌进行硫醇化的可见光诱导的一步程序(分离产率≥75%)。该反应的限速步骤是硫自由基的产生,该自由基通过高分辨质谱进行表征。成本效益、操作简单、反应时间短、原子经济性高和非常好的产率使得这种光氧化还原介导的过程成为过渡金属(例如,Cu、Ag 和 Pd)催化的醌与硫醇或二硫化物。
Novel polypeptide of protein p140 and DNAs encoding it
申请人:ONO PHARMACEUTICAL CO., LTD.
公开号:US20030170865A1
公开(公告)日:2003-09-11
The present invention is related to a novel protein p140 polypeptide which is a key protein involved in the signal transmission system of insulin; method for preparation of it; DNA encoding the said polypeptide; vector derived the said DNA; host cells transformed the said vector; antibody of the said polypeptide; pharmaceutical composition containing the said peptide or antibody; method for the prevention and/or treatment of diabetes, which is characterized by tyrosine phosphorylation of the said protein p140; agent for the prevention and/or treatment for the currently said the prevention and/or treatment method; agent for the prevention and/or treatment of diabetes, which is characterized by containing a compound which can tyrosine phosphorylation of protein p140, as active ingredient and the screening methods of the said prevention and/or treatment agent.
Tyrosine phosphorylation of protein p140 is an essential step in the induction of hypoglycemia by glucose uptake. Method and agent of prevention and/or treatment based on tyrosine phosphorylation of protein p140 in the present invention is not only improve the diabetes-derived hyperglycemic conditions but are also useful for the treatment and/or prevention of diabetes, especially non-insulin dependent diabetes mellitus (NIDDM).