You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: The molecule is a anti histaminic and belongs to the anti allergic class of molecules.
user
CC(COC1=COC(Cc2ccccc2)O1)n1cc(C2CCN(CCOc3ccccc3C(=O)O)CC2)c2ccccc21
assistant