Using COC(=O)C(C)(C(=O)c1cn2c3c(cccc13)CCC2)c1cn(C(=O)OC(C)(C)C)c2ccccc12, NN to produce O=c1[nH][nH]c(-c2cn3c4c(cccc24)CCC3)c1-c1c[nH]c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.