You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Can you create a molecule that matches the given characteristics? It belongs to the pgd2 receptor antagonist class of molecules.
user
CC(=O)N(c1ccc(Cl)cc1)C1CC(C)N(C(=O)c2ccc(OCCNC(=O)C3CCC3)cc2)c2ccccc21
assistant