Using CCc1nc2c(N)nc3cc(O)ccc3c2s1, COC(=O)c1ccc(Cl)nc1 to produce CCc1nc2c(N)nc3cc(Oc4ccc(C(=O)OC)cn4)ccc3c2s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.