Using Cc1cn(CCCN)c(-c2ccccc2)n1, O=Cc1ccc(Cl)cc1 to produce Cc1cn(CCCNCc2ccc(Cl)cc2)c(-c2ccccc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.