You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a cftr modulator.
user
CCCC1CCC(C)N1c1ccc(NC(=O)c2c[nH]c3cccc(O)c3c2=O)c(C(F)(F)F)c1
assistant