Using CCN=C=NCCCN(C)C, O=C(O)c1coc2c1C(=O)CC(c1ccccc1)C2 to produce NC(=O)c1coc2c1C(=O)CC(c1ccccc1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.