Using COC(=O)c1ccc(-c2ccc3c(c2)CN(C(=O)OC(C)(C)C)CCO3)cc1 to produce COC(=O)c1ccc(-c2ccc3c(c2)CNCCO3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.