SYNTHETIC METHOD FOR MONTELUKAST SODIUM INTERMEDIATE
申请人:Zhao Zhiquan
公开号:US20120165535A1
公开(公告)日:2012-06-28
A synthesis method for preparing Montelukast sodium intermediate 2-(2-(3-(2-(7-chloro-2-quinolyl)vinyl)phenyl-3-oxopropyl)phenyl) propanol is provided. In this method, the target compound is prepared by condensing the starting materials 7-chloroquinaldine and 3-cyanobenzaldehyde, and then reacting the resultant product with 2-(2-ortho-(2-haloethyl)-phenylpropyl)tetrahydropyrane ether. The present invention can easily obtain start materials and is applicable for mass production.
Fluorinated hydroxyalkylquinoline acids as leukotriene antagonists
申请人:Merck Frosst Canada, Inc.
公开号:US05270324A1
公开(公告)日:1993-12-14
Compounds having the formula I: ##STR1## are leukotriene antagonists and inhibitors of leukotriene biosynthesis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents. They are also useful in treating angina, cerebral spasm, glomerular nephritis, hepatitis, endotoxemia, uveitis, and allograft rejection.
Compounds having the formula:
are leukotriene antagonists and inhibitors of leukotriene biosynthesis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents.
SYNTHETIC METHOD OF MONTELUKAST SODIUM INTERMEDIATE
申请人:Shandong New Time Pharmaceutical Co., Ltd.
公开号:EP2474535A1
公开(公告)日:2012-07-11
A synthesis method for preparing Montelukast sodium intermediate 2-(2-(3-(2-(7-chloro-2-quinolyl)vinyl)phenyl-3-oxopropyl)phenyl) propanol is provided. In this method, the target compound is prepared by condensing the starting materials 7-chloroquinaldine and 3-cyanobenzaldehyde, and then reacting the resultant product with 2-(2-ortho-(2-haloethyl)-phenylpropyl)tetrahydropyrane ether. The present invention can easily obtain start materials and is applicable for mass production.
PROCESS FOR THE CHLORINATION AND IODINATION OF COMPOUNDS USING N-HYDROXYPHTHALIMIDE
申请人:Justus-Liebig-Universität Gießen
公开号:EP3318547A1
公开(公告)日:2018-05-09
The invention provides a process for the production of halogenated hydrocarbons comprising the usage of at least one halogenating agent which contains at least one halogen-atom per formular unit in combination with substituted or unsubstituted N-hydroxyphthalimide and a metal-containing salt-like compound or a carboxylic or sulfonic acid with or without solvent.