Using C[Si](C)(C)CCOCn1ccc2cc(C=O)ccc21, CCCOCC(=O)OCC to produce CCCOC(C(=O)OCC)C(O)c1ccc2c(ccn2COCC[Si](C)(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.