Using COC(CN(C)C(=O)Nc1ccc(Oc2ccc(Cl)c(Cl)c2)cc1)OC to produce Cn1ccn(-c2ccc(Oc3ccc(Cl)c(Cl)c3)cc2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.