Using C[Si](C)(C)CCOCn1ccc2c(-c3cnn([C@H](CC#N)C(F)(F)F)c3)ncnc21, CO to produce C[Si](C)(C)CCOCn1ccc2c(-c3cnn([C@H](CC=O)C(F)(F)F)c3)ncnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.