Using C[O-], COC(=O)c1cccc(OCc2nc3ccc(Oc4ncc(Br)c(Cl)c4Br)cc3n2C)c1 to produce COC(=O)c1cccc(OCc2nc3ccc(Oc4ncc(Br)c(OC)c4Br)cc3n2C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.