Using Cc1c(Nc2ccccc2)c2c(=O)n(C3CC3)c(=O)n(-c3ccc(Br)cc3)c2n(C)c1=O to produce Cc1c(=O)n(C)c(Nc2ccc(Br)cc2)c2c(=O)n(C3CC3)c(=O)n(Nc3ccccc3)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.