You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a oxytocin antagonist.
user
C=CCON=C1CC(C(=O)Nc2ccc3c(c2)c2ccccc2n3CC)N(C(=O)C(c2ccccc2)c2ccccc2)C1
assistant