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 cgrpantagonists. Use the above information to create a molecule.
user
COc1ccc2c(c1)CCN(C1CCN(c3cc(C(=O)N4CC(C)c5cc(C)c(F)cc54)ncn3)CC1)C(=O)N2
assistant