反应详情

Using a similar protocol as described in Example 70 employing 74A and 70A as starting materials afforded 35 mg (11%) of 74 as a solid. 1H NMR (500 MHz, CDCl3): δ 0.95 (t, 3H), 1.78 (q, 2H), 2.24 (s, 3H), 3.01 (d, 2H), 3.31 (d, 2H), 3.57 (s, 2H), 4.35 (m, 1H), 4.68 (m, 1H), 4.75 (m, 1H), 5.07 (m, 1H), 5.12 (m, 1H), 6.45 (d, 1H), 7.06 (d, 1H), 7.11 (s, 1H), 7.52 (t, 2H), 7.60 (t, 1H), 8.16 (d, 1H), MS (APCI+) m/z 449 [M+H]+, LC purity: 97%.