| abstract |
The present invention relates to compounds and their use in the treatment of cystic fibrosis, methods for their production, pharmaceutical compositions comprising the same, and methods of treating cystic fibrosis by administering a compound of the invention. In one embodiment, the compound is a compound of Formula (I), or a pharmaceutically acceptable salt thereof, (I) wherein A1 is selected from the group consisting of X1, X2, X3, X4; R1, R2A, R2B, R2C, R2D, R3, R4,R5A, R5B, R5C, R5D, R6A, R6B, R6C, R6D, R7, R8, R9, R10, R11, R12, R13, and R14 are as described herein. |