Using COC(=O)c1cccc(O)c1, O=C(NCCCO)OCc1ccccc1 to produce COC(=O)c1cccc(OCCCNC(=O)OCc2ccccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.