Using CC(C)(C)C(=O)OCn1ccc2c(-c3cnn(C(CC(N)=O)C4CCCC4)c3)ncnc21, Nc1ncnc(Cl)c1C=O to produce COC=Cc1c(N)ncnc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.