Using OB(O)c1ccc(Cl)cc1, CC(C)(C)OC(=O)N1CCC[C@H]1COc1cnc(Cl)c(Br)c1 to produce CC(C)(C)OC(=O)N1CCC[C@H]1COc1cnc(Cl)c(-c2ccc(Cl)cc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.