Using CCOC(=O)C(Cc1ccnc(NC(=O)OC(C)(C)C)c1)C(=O)OCC to produce CCOC(=O)C(Cc1ccnc(NC(=O)OC(C)(C)C)c1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.