Using C[Si](C)(C)CCOCCl, O=C(Cn1ccc2cccnc21)N1CCN(c2sc(Br)nc2-c2nc3ccccc3[nH]2)CC1 to produce C[Si](C)(C)CCOCn1c(-c2nc(Br)sc2N2CCN(C(=O)Cn3ccc4cccnc43)CC2)nc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.