You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a migraine treatment and belongs to the cgrp antagonist class of molecules.
user
Nc1c(Cl)cc(CC(OC(=O)N2CCC(n3nc(-c4ccccc4)[nH]c3=O)CC2)C(=O)N2CCC(C3CCN(CC(=O)O)CC3)C2)cc1C(F)(F)F
assistant