Using COC(=O)c1ccc2sc(C(=O)NOC(c3ccccc3)(c3ccccc3)c3ccccc3)cc2c1 to produce O=C(O)c1ccc2sc(C(=O)NOC(c3ccccc3)(c3ccccc3)c3ccccc3)cc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.