Using CSc1ccc2nc(C(O)(c3cnnn3COCC[Si](C)(C)C)C(C)C)ccc2c1 to produce CSc1ccc2nc(C(O)(c3c[nH]nn3)C(C)C)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.