Using CCC1(C)CC2(NC(=O)NC2=O)C(C)C(C)(CC)N1, CCCCCCCCBr to produce CCCCCCCCN1C(=O)NC2(CC(C)(CC)NC(C)(CC)C2C)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.