Using CCCCNCCCC, C[Si](C)(C)CCOCn1cc(C(=O)O)nc1Br to produce CCCCN(CCCC)C(=O)c1cn(COCC[Si](C)(C)C)c(Br)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.