Using CCOC(=O)c1cnc(SC)nc1[Sn](C)(C)C, O=C(Cl)CCc1ccccc1 to produce CCOC(=O)c1cnc(SC)nc1C(=O)CCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.