You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is cystic fibrosis treatment and cftr modulator.
user
CC1(C(F)F)CC(NC(=O)C2(c3ccc4c(c3)OC(F)(F)O4)CC2)c2ccccc2O1
assistant