You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is cftr modulator and cystic fibrosis treatment.
user
CN(C(=O)c1cccc(-n2nc(C(F)(F)F)c3c2CCCC3)c1)c1cnc2c(c1)CCC2
assistant