Using COc1cccc2scnc12, CON(C)C(=O)C1CCN(C(=O)OC(C)(C)C)CC1 to produce COc1cccc2sc(C(=O)C3CCN(C(=O)OC(C)(C)C)CC3)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.