You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is cftr modulator.
user
COCC(Oc1ccc(C)c2nc(-c3sc4ccccc4c3C)cc(C(=O)O)c12)c1ccccc1
assistant