Using COc1ccc(CCCSc2ncccc2C(=O)NCC2CC3CCC2C3)cc1 to produce O=C(NCC1CC2CCC1C2)c1cccnc1SCCCc1ccc(O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.