Using COC(C)O, Cn1cc(Cl)c2cccc(C(=O)c3ccccc3)c21 to produce CN1C(=O)Cc2cccc(C(=O)c3ccccc3)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.