Using CCCCOCN(Cc1ccccc1)C[Si](C)(C)C, CC1(c2ccccc2)C=CC(=O)CC1 to produce CC1(c2ccccc2)CCC(=O)C2CN(Cc3ccccc3)CC21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.