Using CC(C)(C)OC(=O)N1CCN(c2nc(-c3ccc(C(=O)O)cc3)cs2)CC1 to produce O=C(O)c1ccc(-c2csc(N3CCNCC3)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.