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: The molecule is a histamine receptor antagonist. Please write the SMILES representation of it.
user
COc1cccnc1N1CC2(CCN(c3ccc(OC4CCN(C(C)C)CC4)cc3)CC2)OC1=O
assistant