Using COC(=O)CCCCCCCNC(=O)c1c(C)nc2c(OCC3CCCCC3)cccn12 to produce Cc1nc2c(OCC3CCCCC3)cccn2c1C(=O)NCCCCCCCC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.