Chapter 15, Problem 61P

Acetanilide was subjected to the following sequence of reactions: (1) concd $H_{2}S{O}_4$; (2) $HN{O}_3$, heat; (3) $H_{2}O$, $H_{2}S{O}_4$, heat, then $H{O}^{-}$. The ${}^{13}C$ NMR spectrum of the final product gives six signals. Write the structure of the final product.