Question: Please provide a description of this drug's mechanism of action.
Constraint: The Compound has the SMILES CN(C)CCOC(C)(c1ccccc1)c1ccc(Cl)cc1.
Result: Histamine H1 receptor antagonist
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CN(C)CCOC(C)(c1ccccc1)c1ccc(Cl)cc1
CN(C)CCOC(C)(c1ccccc1)c1ccc(Cl)cc1
2-[1-(4-chlorophenyl)-1-phenylethoxy]-N,N-dimethylethanamine
Please provide a description of this drug's mechanism of action.