You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a anti histamine member of the modulate class. Please represent the molecule in SMILES.
user
CCC1c2c(c3cc(Cl)ccc3n2C(=O)Cc2ccc(F)cc2)CCN1C
assistant