Using O=C(O)c1nn(-c2ccccc2Cl)c(-c2ccc(Cl)cc2)c1NCC1CCCN1 to produce O=C1c2nn(-c3ccccc3Cl)c(-c3ccc(Cl)cc3)c2NCC2CCCN12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.