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 a cystic fibrosis treatment member of the cftr modulator class.
user
Cc1cccc(C)c1-c1cc(Oc2cccc(CC=CC(=O)O)c2)nc(NS(=O)c2cccc(NO)c2)n1
assistant