3-(5-chloro-4-fluoro-2-hydroxyphenyl)-3-hydroxy-1-pentyl-1,3-dihydro-2H-indol-2-one → 3-(5-chloro-4-fluoro-2-hydroxyphenyl)-1-pentyl-1,3-dihydro-2H-indol-2-one

Participants

Reaction Steps

Following the procedure as described in PREPARATION 15B, and making non-critical variations to replace 3-(5-bromo-2-hydroxyphenyl)-3-hydroxy-1-pentyl-1,3-dihydro-2H-indol-2-one with 3-(5-chloro-4-fluoro-2-hydroxyphenyl)-3-hydroxy-1-pentyl-1,3-dihydro-2H-indol-2-one, the title compound was obtained (99%): 1H NMR (300 MHz, CDCl3) δ 10.0-9.70 (br, 1H), 7.45-7.18 (m, 3H), 6.98 (d, 1H), 6.90-6.82 (m, 2H), 5.01 (s, 1H), 3.75-3.66 (m, 2H), 1.76-1.62 (m, 2H), 1.40-1.28 (m, 4H), 0.87 (t, 3H); MS (ES+) m/z 348 (M+1).

Provenance & Evidence