Using C=CC(=O)OCC, NC1CN(c2ccc3c(C(=O)NCC4CCCCC4)c(Cl)ccc3n2)C1 to produce O=C(O)CCNC1CN(c2ccc3c(C(=O)NCCC4CCCCC4)c(Cl)ccc3n2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.