You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: It belongs to the anti histaminic class of molecules. Please write the SMILES representation of it.
user
O=C1CCc2c(cccc2OCCCN2CCC(O)(c3ccc(Cl)cc3)CC2)N1
assistant