Using Cc1ccccc1-c1ccc2nc(NC(C)(C)C)c(/C=C/c3cc(C(C)(C)C)ncn3)cc2c1 to produce Cc1ccccc1-c1ccc2nc(N)c(CCc3cc(C(C)(C)C)ncn3)cc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.