Using CC1CC(=O)NN=C1c1ccc2c(c1)CCC(=O)N2C, CCBr to produce CCN1N=C(c2ccc3c(c2)CCC(=O)N3C)C(C)CC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.