Using Cc1sc(Br)nc1-c1ccccc1, CC(C)(C)OC(=O)N1CCNCC1 to produce Cc1sc(N2CCN(C(=O)OC(C)(C)C)CC2)nc1-c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.