Using ClCc1ccc(Cl)cc1, OC(CNc1ccc(Cl)c(Cl)c1)Cn1ccnc1 to produce Clc1ccc(COC(CNc2ccc(Cl)c(Cl)c2)Cn2ccnc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.