Using COC(=O)CNC(=O)C1=C(O)c2cc(Cl)ccc2C(C)(C)C1=O to produce CC1(C)C(=O)C(C(=O)NCC(=O)O)=C(O)c2cc(Cl)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.