反应详情

Intermediate 8B was prepared using a procedure analogous to Intermediate 2C except that Intermediate 2A was replaced with Intermediate 8A. 1H NMR (500 MHz, CDCl3) δ 8.06-8.02 (m, 2H), 6.99-6.97 (m, 1H), 4.08 (t, J=6.2 Hz, 2H), 2.19-2.06 (m, 2H), 1.92-1.82 (m, 2H), 1.71-1.55 (m, 4H).