Using NC1CC1, CCNC(=O)c1ccc(-n2nnc(C(=O)O)c2-c2cccs2)cc1 to produce CCNC(=O)c1ccc(-n2nnc(C(=O)NC3CC3)c2-c2cccs2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.