Using O=C(O)CC(O)(CC(=O)O)C(=O)O, CC(C)[Si](C(C)C)(C(C)C)n1ccc2cc(Br)cnc21 to produce Cc1cnc2c(ccn2[Si](C(C)C)(C(C)C)C(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.