You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a cgrpantagonists and belongs to the cgrp antagonist class of molecules.
user
O=C(c1cc(N2CCC(n3c(=O)[nH]c4ncccc43)CC2)ncn1)N1CCc2cnccc21
assistant