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 cftr modulator, a cetp inhibitor, and cystic fibrosis treatment.
user
CCOC(=O)C(OC(C)C)C(=O)OCC
assistant