Using COCCBr, O=c1c(I)c(-c2ccccc2)oc2c(=O)[nH]ccc12 to produce COCCn1ccc2c(=O)c(I)c(-c3ccccc3)oc2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.