Using CC(C)(C)[Si](C)(C)OC[C@@H]1C[C@@H](Oc2ncnc3c2nc(-c2ccccc2)n3Cc2ccccc2)C[C@@H]1O[Si](C)(C)C(C)(C)C to produce CC(C)(C)[Si](C)(C)O[C@H]1C[C@H](Oc2ncnc3[nH]c(-c4ccccc4)nc23)C[C@H]1CO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.