| abstract |
The invention relates to compounds of formula I: (see Formula) and pharmaceutically acceptable salts thereof, wherein A, X, R1, R4 and n are as defined herein. Furthermore, the present invention relates to the method of preparation and methods of use of the compounds of formula I, as well as to pharmaceutical compositions containing the compounds. The compounds may be useful in the treatment of TRPA1-mediated diseases and conditions, such as pain. |