Using COc1ccc2c(Cc3ccc(OCCBr)cc3)c(-c3ccc(Cl)cc3)c(=O)oc2c1 to produce O=c1oc2cc(O)ccc2c(Cc2ccc(OCCBr)cc2)c1-c1ccc(Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.