Using COC(=O)c1cccc(-c2cccc(NC(=O)CNC(=O)OC(C)(C)C)c2)c1 to produce COC(=O)c1cccc(-c2cccc(NCCNC(=O)OC(C)(C)C)c2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.