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: It belongs to the cftr modulator class of molecules.
user
CNc1nc(C(F)(F)F)c(Br)nc1C(=O)Nc1n[nH]c(Cc2ccccc2)n1
assistant