mild conditions, and the reaction of substituted benzoxazoles, oxazole and benzothiazole occurred even at room temperature. The substrate scope of the reaction was turned out to include mono-, di- and trisubstituted alkenyl bromides. To validate the scalability of this method, 5-Methyl-2-(prop-1-en-2-yl)benzoxazole (3c) was prepared on one-gram scale at room temperature.
New synthetic methods were developed for the preparation of 2,3,6-trisubstituted 1-oxo-1,2-dihydroisoquinolines as CRTh2 antagonists. The isoquinolinone core could be constructed before the introduction of substitution groups or synthesized through a catalytic intramolecular cyclization reaction with desired substitution groups properly installed. These synthetic strategies have helped to accelerate
This application provides for compounds of the formula Formula I or a pharmaceutically acceptable salt thereof, wherein the individual variables are defined herein, as well as processes to prepare these compounds, pharmaceutical compositions comprising the same and their use in treating disease state associated with the CRTH
2
receptor.
Substituted isoquinolines as CRTH2 receptor modulators
申请人:Merck Sharp & Dohme Corp.
公开号:US09290454B2
公开(公告)日:2016-03-22
The invention provides certain substituted isoquinolines of the Formula (I), and their pharmaceutically acceptable salts and esters. The invention also provides pharmaceutical compositions comprising such compounds, and methods of using the compounds for treating diseases or conditions associated with uncontrolled or inappropriate stimulation of CRTH2 function.
SUBSTITUTED ISOQUINOLINES AS CRTH2 RECEPTOR MODULATORS
申请人:HUANG Xianhai
公开号:US20150353498A1
公开(公告)日:2015-12-10
The invention provides certain substituted isoquinolines of the Formula (I), and their pharmaceutically acceptable salts and esters. The invention also provides pharmaceutical compositions comprising for treating diseases or conditions associated with uncontrolled or inappropriate stimulation of CRTH2 function.