Using CCOC(=O)COc1c(C(=O)OC)sc2c1sc1cc(C(=O)O)ccc12, NC1CCCCC1 to produce CCOC(=O)COc1c(C(=O)OC)sc2c1sc1cc(C(=O)NC3CCCCC3)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.