Using CCOC(=O)c1cnn(-c2ccc(C(=O)NCC3CCOCC3)cn2)c1OC to produce COc1c(C(=O)O)cnn1-c1ccc(C(=O)NCC2CCOCC2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.