Using C[C@H]1CNCCN1C(=O)OC(C)(C)C, O=Cc1cccc(Br)c1 to produce C[C@H]1CN(Cc2cccc(Br)c2)CCN1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.