反应详情

Following the procedure as described in PREPARATION 1C, and making non-critical variations to replace 4-bromo-1-pentyl-1H-indole-2,3-dione with 1-pentyl-1H-indole-2,3-dione, and 1,3-benzodioxol-5-ol with 4-bromophenol, the title compound was obtained (41%): 1H NMR (300 MHz, CDCl3) δ 9.46-9.25 (br, 1H), 7.51-6.80 (m, 7H), 4.73-4.51(br, 1H), 3.79-3.56 (m, 2H), 1.76-1.60 (m, 2H), 1.41-1.22 (m, 4H), 0.87 (t, 3H); MS (ES+) m/z 377 (M−17), 379 (M−17), 412 (M+23), 414 (M+23).