Using CCCN1C(=O)N2C[C@@H](Cc3ccccc3)N=C2c2c1nc(Br)n2COC, CS to produce CCCN1C(=O)N2C[C@@H](Cc3ccccc3)N=C2c2c1nc(SC)n2COC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.