Using Cc1nc2sc3c(c2c(N)c1C(=O)C1CC1)CCC3, BrCCCCCBr to produce Cc1nc2sc3c(c2c(N2CCCCC2)c1C(=O)C1CC1)CCC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.