Using CS, Nc1c(OP(=O)(N2CCOCC2)N2CCOCC2)nc2ccc(Cl)cc2c1-c1ccccc1 to produce CSc1nc2ccc(Cl)cc2c(-c2ccccc2)c1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.