| abstract |
This invention relates to novel 4,4,5,5,7,7-hexamethyl-5,7-dihydro-4H-thieno[2,3-c]pyranyl compounds, and pharmaceutically acceptable salts thereof. This invention also provides compositions comprising a compound of this invention and the use of such compositions in methods of treating diseases and conditions that are beneficially treated by administering cystic fibrosis transmembrane conductance regulator (CFTR) modulators. |