Using CCCCn1c(=O)c2[nH]cnc2n(CCCC)c1=O, C=CCCBr to produce C=CCCn1cnc2c1c(=O)n(CCCC)c(=O)n2CCCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.