Using CCOC(=O)c1ccc2sc(CCl)c(C)c2c1, c1c[nH]cn1 to produce CCOC(=O)c1ccc2sc(Cc3ncc[nH]3)c(C)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.