Using CC(C)(C)[Si](C)(C)OC[C@H]1O[C@@H](n2c(-c3cccnc3)nc3c(N)ncnc32)[C@H](O[Si](C)(C)C(C)(C)C)[C@@H]1O[Si](C)(C)C(C)(C)C to produce Nc1ncnc2c1nc(-c1cccnc1)n2[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.