You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is a ret kinase inhibitor and belongs to the cancer treatment class of molecules.
user
CC(C)Oc1cc(-c2ccc(NC(=O)Nc3ccc(OC4(C)COC4)c(C(F)(F)F)c3)c(F)c2)c[nH]c1=O
assistant