Using CO[C@H]1Cc2ccccc2[C@H]1Nc1nc(Cl)nc(N[C@@H]2C[C@@H](COCc3ccccc3)[C@@H](O[Si](C)(C)C(C)(C)C)C2)n1 to produce CO[C@H]1Cc2ccccc2[C@H]1Nc1ncnc(N[C@@H]2C[C@@H](CO)[C@@H](O[Si](C)(C)C(C)(C)C)C2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.