Using CCCCn1c(=O)n(CCC)c(=O)c2c(N)n[nH]c21, ClCCBr to produce CCCCn1c(=O)n(CCC)c(=O)c2c(N)n(CCCl)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.