You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a ret kinase inhibitor that impacts cancer treatment.
user
CC1(C)CN(C(=O)C2CCCO2)Cc2c(-c3[nH]c4ncccc4c3Cl)c3c(N)ncnc3n21
assistant