Using COC(=O)CN(C)NC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@@H]21 to produce CN(CC(=O)O)NC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.