Using S=P12SP3(=S)SP(=S)(S1)SP(=S)(S2)S3, CC1(c2cccc(Br)n2)COCC(=O)N1 to produce CC1(c2cccc(Br)n2)COCC(=S)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.