Using CC1(C)CC(c2c[nH]c3c(C(N)=O)cc(-c4csc(C=O)c4)cc23)CCS1(=O)=O, C1CCNC1 to produce CC1(C)CC(c2c[nH]c3c(C(N)=O)cc(-c4csc(CN5CCCC5)c4)cc23)CCS1(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.