Using c1cn[nH]c1, COC(=O)c1cc(Br)c(=O)n(C2CCCC2)c1 to produce COC(=O)c1cc(-n2cccn2)c(=O)n(C2CCCC2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.