Using COC(=O)CN1CCN(C(=O)OC(C)(C)C)C(Cc2ccc(OCc3ccccc3)cc2)C1=O to produce CC(C)(C)OC(=O)N1CCN(CC(=O)O)C(=O)C1Cc1ccc(OCc2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.