Using CCOC(=O)N1C=Cc2c(oc3c(Cl)cc(Br)cc23)CC1 to produce CCOC(=O)N1CCc2oc3c(Cl)cc(Br)cc3c2CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.