Using CCCCCC(CCCN(CCCCCCC(=O)OCC)C(C)=O)OC1CCCCO1 to produce CCCCCC(O)CCCN(CCCCCCC(=O)O)C(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.