Using COC(=O)c1ccc(N2CCN(C(=O)OC(C)(C)C)CC2)cc1 to produce CC(C)(C)OC(=O)N1CCN(c2ccc(CO)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.