Using COc1ccc(CSc2ccc(OC3CCN(c4ccncc4)C3)nc2)cc1 to produce c1ccc2nc(O[C@@H]3CCN(c4ccncc4)C3)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.