反应详情

Prepared from 27a and 24a. Mp 175-176  C. 1H NMR (CDCl3) δ1.75-1.85 (m, 2H), 2.45-2.55 (m, 1H), 2.55-2.60 (m, 2H), 2.60-2.70 (m, 4H), 2.70-2.80 (m, 2H), 3.05-3.15 (m, 2H), 3.25 (broad s, 2H), 6.05 (broad s, 1H), 6.45 (s, 1H), 7.05 (t, 1H), 7.10-7.25 (m, 5H), 7.35 (d, 1H), 7.55 (d, 1H), 8.10 (broad s, 1H). MS m/z (%): 343 (MH+, 8%), 174 (32%), 143 (100%).