You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? It belongs to the anti allergic class of molecules.
user
CCCCCOc1nc2c(OC(C)C)cccn2c1C=C(C#N)C(=O)OCc1ccccc1
assistant