| abstract |
The present invention relates to compounds of formula (I) and pharmaceutically acceptable salts and esters thereof, wherein W, X, Y and R 1 to R 7 are defined as in the description and claims of the invention. In addition, the present invention relates to methods of preparing and using the compounds of formula (I) as well as pharmaceutical compositions containing said compounds. Compounds of formula (I) are antagonists or partial agonists for CRTH2 receptors and may be useful for treating diseases and disorders involving such receptors, such as asthma. |