Using O=C(NC(=S)NC1CCN(CCc2c[nH]c3ccccc23)CC1)c1ccccc1 to produce NC(=S)NC1CCN(CCc2c[nH]c3ccccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.