Using C1CCN(C2CCNCC2)CC1, CC(C)(C)OC(=O)NCCCBr to produce CC(C)(C)OC(=O)NCCCN1CCC(N2CCCCC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.