Using CC(=O)NC(C(=O)O)c1ccc(N)cc1, CC(C)(C)N=C=S to produce CC(=O)NC(C(=O)O)c1ccc(NC(=S)NC(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.