Using COC(=O)c1cccc(O)c1, CN(CCO)C(=O)OC(C)(C)C to produce COC(=O)c1cccc(OCCN(C)C(=O)OC(C)(C)C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.