Using S=P12SP3(=S)SP(=S)(S1)SP(=S)(S2)S3, CC(C)(C)OC(=O)N1CCNC(=O)CC1 to produce CC(C)(C)OC(=O)N1CCNC(=S)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.