Using O=C1c2ccc(Cl)cc2CCN1c1cncc(O)c1, CC(C)(C)OC(=O)CBr to produce CC(C)(C)OC(=O)COc1cncc(N2CCc3cc(Cl)ccc3C2=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.