Using COc1c(F)c(F)c(N)c2c(=O)c(C(=O)O)cn(C3CC3)c12, CCOC(=O)CCN to produce CCOC(=O)CCNc1c(F)c(N)c2c(=O)c(C(=O)O)cn(C3CC3)c2c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.