Using O, C(=C1CCC(Cc2ccccc2)CC1)c1nc2ccccc2[nH]1 to produce OC(c1nc2ccccc2[nH]1)C1CCC(Cc2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.