Using COC(=O)CCCCCN, O=C(O)CCNC(=O)OCc1ccccc1 to produce COC(=O)CCCCCNC(=O)CCNC(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.