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: It belongs to the cftr modulator class of molecules. Please write the SMILES representation of it.
user
COC(C)c1nnc(CCNC(=O)c2cc(-c3ccccc3)on2)o1
assistant