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 that fulfills the requirement: The molecule is a vasopressin antagonist.
user
CCOC(=O)C1Cc2ccccc2N(C2CCN(C(=O)c3ccc(OCC)cc3OC)CC2)C1=O
assistant