Using Oc1c(I)cc(-c2c3ccccc3cc3sc4ccccc4c23)cc1I, COC(=O)CBr to produce COC(=O)COc1c(I)cc(-c2c3ccccc3cc3sc4ccccc4c23)cc1I, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.