Using O=C1Nc2cc(Cl)ccc2/C1=C/c1cccc(Cl)c1, C[Si](C)(C)CCOCCl to produce C[Si](C)(C)CCOCN1C(=O)/C(=C\c2cccc(Cl)c2)c2ccc(Cl)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.