You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a anti histamine member of the histamine receptor antagonist class.
user
Cc1ccc2c(c1)C(=C1CCN(C)CC1)c1ccccc1CO2
assistant