Using CC(C)(C)OC(=O)N1CCC(C=O)CC1, CCCNC1CCc2ccc(O)cc2C1 to produce CCCN(CC1CCN(C(=O)OC(C)(C)C)CC1)C1CCc2ccc(O)cc2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.