Basic alumina supported tandem synthesis of bridged polycyclic quinolino/isoquinolinooxazocines under microwave irradiation
作者:Shyamal Mondal、Rupankar Paira、Arindam Maity、Subhendu Naskar、Krishnendu B. Sahu、Abhijit Hazra、Pritam Saha、Sukdeb Banerjee、Nirup B. Mondal
DOI:10.1016/j.tetlet.2011.07.012
日期:2011.9
Basic aluminasupported, solvent-freesynthesis of novel oxazocines, medium size heterocycles, has been achieved in excellent yields by tandem C-alkylation followed by intramolecular O-alkylation of hydroxyquinoline/isoquinoline(s) with quinolinium salts under microwave irradiation. The method provides a facile and efficient route for the construction of polynuclear bridge-head oxazocines.
A pharmaceutical useful as a therapeutic agent and a preventive agent for hyperlipemia, and a pharmaceutical useful as a therapeutic agent and a preventive agent for hepatic disorders associated with cholestasis, particularly, primary biliary cirrhosis and primary sclerosing cholangitis, and a pharmaceutical useful as a therapeutic agent and a preventive agent for obesity, fatty liver and steatohepatitis are provided. A benzothiazepine or benzothiepine compound represented by the following formula (1A) having a thioamide bond and a quaternary ammonium substitutent:
A method for inhibiting ileal bile acid transporter activity in a subject, comprising administering to said subject an effective amount of a compound represented by formula (1):
一种抑制回肠胆汁酸转运蛋白活性的方法,包括向该受试者施用一种由式(1)所代表的化合物的有效量:
METHOD FOR PREPARING ENANTIOMER OF SULFOXIDE COMPOUND, AND SYSTEM FOR PREPARING ENANTIOMER
申请人:Tokyo University of Science Foundation
公开号:EP4015044A1
公开(公告)日:2022-06-22
Provided is an enantiomer preparation method in which one enantiomer of a sulfoxide compound is selectively prepared, the sulfoxide compound having a sulfur atom of a sulfoxide group as an asymmetric center, and the method comprising: a step A for optically resolving an enantiomer mixture of a sulfoxide compound into one enantiomer and the other enantiomer; a step B for irradiating with light the other enantiomer obtained in step A or step C to racemize the enantiomer; and step C for optically resolving the enantiomer mixture of the sulfoxide compound obtained in step B into one enantiomer and the other enantiomer. Also provided is a system for preparing an enantiomer, the system being used in the enantiomer preparation method.
提供了一种对映体制备方法,其中选择性地制备了一种亚砜化合物的一种对映体,该亚砜化合物具有一个亚砜基团的硫原子作为不对称中心,该方法包括:A 步,将氧化硫化合物的对映体混合物光学解析为一种对映体和另一种对映体; B 步,用光照射步骤 A 或步骤 C 中得到的另一种对映体,使该对映体消旋化;以及 C 步,将步骤 B 中得到的氧化硫化合物的对映体混合物光学解析为一种对映体和另一种对映体。还提供了一种制备对映体的系统,该系统用于对映体制备方法。
Kaufmann; Peyer, Chemische Berichte, 1912, vol. 45, p. 1806