You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It belongs to both the oxytocin antagonist and vasopressin antagonist classes of molecules.
user
CCCCCC1CNC(CC(C)(C)C=O)C1
assistant