The invention is concerned with the compounds of formula (I) and pharmaceutically acceptable salts and esters thereof, wherein X, Q, and R1-R6 are defined in the detailed description and claims. In addition, the present invention relates to methods of manufacturing and using the compounds of formula (I) as well as pharmaceutical compositions containing such compounds. The compounds of formula (I) are antagonists or partial agonists at the CRTH2 receptor and may be useful in treating diseases and disorders associated with that receptor such as asthma.
The invention is concerned with the compounds of formula I:
and pharmaceutically acceptable salts and esters thereof, wherein X, Q, and R
1
-R
6
are defined in the detailed description and claims. In addition, the present invention relates to methods of manufacturing and using the compounds of formula I as well as pharmaceutical compositions containing such compounds. The compounds of formula I are antagonists or partial agonists at the CRTH2 receptor and may be useful in treating diseases and disorders associated with that receptor such as asthma.
An Efficient Large-Scale Synthesis of a Naphthylacetic Acid CRTH2 Receptor Antagonist
作者:Lianhe Shu、Ping Wang、Chen Gu、Wen Liu、Lady Mae Alabanza、Yingchao Zhang
DOI:10.1021/op300306c
日期:2013.4.19
An efficient and practical synthesis of a naphthylacetic acid CRTH2 receptor antagonist is reported. Michael addition of ethyl t-butyl malonate to an allenoate afforded a triester, which was selectively hydrolyzed and decarboxylated to give a benzylidenepentanedioic acid monoester. Treatment of this compound with potassium acetate and acetic anhydride produced the naphthylacetate core. The triflate