You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): It belongs to the vasopressin antagonist class of molecules.
user
CCCN1CCN(CCNC(=O)C(c2ccccc2)n2c(=O)n(S(=O)(=O)c3ccc(OC)cc3)c3ccc(Cl)cc32)CC1
assistant