Using NC(=O)c1cccc2sc(-c3nc(NCCC4CCNCC4)ncc3Cl)cc12, C=O to produce CN1CCC(CCNc2ncc(Cl)c(-c3cc4c(C(N)=O)cccc4s3)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.