Using O=C(CCC(=O)OCCCCCCCC(=O)OCc1ccccc1)CNC(=O)OCc1ccccc1 to produce NCC(=O)CCC(=O)OCCCCCCCC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.