You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a oxytocin antagonist and belongs to the vasopressin antagonist class of molecules. Use the above information to create a molecule.
user
O=C(NCCCCC(Cc1ccc(F)cc1)c1nnc(SCc2ccccc2F)n1CCc1ccccc1)c1ccccc1O
assistant