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 cgrp antagonist and belongs to the cgrp receptor antagonist class of molecules, impacting migraine treatment. Use the above information to create a molecule.
user
O=C(Cc1cc(-c2cccc(F)c2F)cn(CC(F)(F)F)c1=O)N1CCC2(CC1)C(=O)Nc1ncccc12
assistant