Using Cc1nnc(Br)s1, NCCN1CCC(Nc2nc3ccccc3n2Cc2ccc(F)cc2)CC1 to produce Cc1nnc(NCCN2CCC(Nc3nc4ccccc4n3Cc3ccc(F)cc3)CC2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.