You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a cystic fibrosis treatment and belongs to the cftr modulator class of molecules. Please represent the molecule in SMILES.
user
O=[N+]([O-])c1ccc(SNc2nc(Oc3ccccc3)cc(-c3ccccc3)n2)cc1
assistant