Using CC(C)(C)[Si](C)(C)OC1C=C(c2cnc(N)cn2)CCC1 to produce CC(C)(C)[Si](C)(C)O[C@H]1CCC[C@@H](c2cnc(N)cn2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.