Using CCOC(=O)CCl, COc1ccc(-c2cc3nccnc3[nH]2)cc1O to produce CCOC(=O)COc1cc(-c2cc3nccnc3[nH]2)ccc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.