Using CN(c1cnc(CN(CCO)Cc2ccccc2)c(Cl)n1)C1CCC1 to produce CN(c1cnc2c(n1)OCCN(Cc1ccccc1)C2)C1CCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.