Using O=C(O)c1ccc(-c2ccccc2)c(-c2ccccc2)c1, NCCCCc1cccnc1 to produce O=C(NCCCCc1cccnc1)c1ccc(-c2ccccc2)c(-c2ccccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.