反应详情

Using similar protocols as described in Examples 31A, 31B and 31C employing pyrrolidine and 52A as starting materials afforded 0.25 g (30%) of 52B as an oil. 1H NMR (500 MHz, CDCl3): δ 1.75 (s, 4H), 2.16 (s, 3H), 2.51 (s, 4H), 3.70 (s, 2H), 3.74 (s, 3H), 3.79 (m, 2H), 3.91 (m, 2H), 4.97 (m, 1H), 6.29 (d, 1H), 7.11 (d, 1H), MS (APCI+) m/z 277 [M+H]+.