Using CC(C)(C)OC(=O)N[C@H]1CC[C@H](N)CC1, BrCCCCCBr to produce CC(C)(C)OC(=O)N[C@H]1CC[C@H](N2CCCCC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.