Using COC[C@H](C)OC[C@H](O[Si](C)(C)C(C)(C)C)C(=O)Nc1cnc(C)cn1 to produce COC[C@H](C)OC[C@H](O)C(=O)Nc1cnc(C)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.