Using COCC1(COC)Oc2ccc([N+](=O)[O-])cc2CC1=O, CN=C=S to produce CNC(=S)C1=C(O)C(COC)(COC)Oc2ccc([N+](=O)[O-])cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.