Using CC[Si](CC)(CC)OC(C)(C)c1ccn2c(-c3ccnc(Cl)n3)cnc2n1, c1c[nH]cn1 to produce CC[Si](CC)(CC)OC(C)(C)c1ccn2c(-c3ccnc(-n4ccnc4)n3)cnc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.