Using CC(C)(C)OC(=O)N[C@H]1CC[C@@H](N)CC1, BrCCCCBr to produce CC(C)(C)OC(=O)N[C@H]1CC[C@@H](N2CCCC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.