Using COC(=O)c1ccc(C=CCCNCC(=O)OC(C)(C)C)cc1O to produce COC(=O)c1ccc(CCCCNCC(=O)OC(C)(C)C)cc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.