Using O=C1CCC(=O)N1Cl, CC(C)N1CCC(Oc2ccc3c(c2)cc2n3[C@H](C)CNC2=O)CC1 to produce CC(C)N1CCC(Oc2ccc3c(c2)c(Cl)c2n3[C@H](C)CNC2=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.