Using CCOC(=O)C(=O)N(CCN(CC#Cc1cccs1)C(=O)OC(C)(C)C)C(C)C to produce CC(C)N(CCN(CC#Cc1cccs1)C(=O)OC(C)(C)C)C(=O)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.