You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a member of the cftr modulator class and affects cystic fibrosis treatment. Please write the SMILES representation of it.
user
CC(O)C1NC2(C(=O)Nc3c(Cl)cc(Cl)cc32)C2C(=O)N(c3cc(Cl)cc(Cl)c3)C(=O)C12
assistant