反应详情

[5-(4-Acetylphenyl)-1-benzyl-1H-indol-3-yl](oxo)acetic acid was prepared from ethyl [5-(4-acetylphenyl)-1-benzyl-1H-indol-3-yl](oxo)acetate (0.225 g, 0.529 mmol), and potassium hydroxide (0.104 g, 1.85 mmol) in THF (7 mL) and water (7 mL) according to the procedure described in Step 4 of Example 5. After drying for 15 hours at 96° C., the title compound was obtained as a tan solid (0.166 g, 79%), mp: 213-214° C. (dec.). Mass spectrum (−APCI, [M−H]−) m/z 396; 1HNMR (400 MHz, DMSO-d6): δ 8.75 (s, 1H), 8.5 (d, 1H, J=1.7 Hz), 8.05 (d, 2H, J=8.3 Hz), 7.8 (d, 2H, J=8.3 Hz), 7.7 (d, 1H, J=8.8 Hz), 7.65 (dd, 1H, J=8.7 Hz and 1.6 Hz), 7.25-7.4 (m, 5H), 5.65 (s, 2H), and 2.6 ppm (s, 3H). Elemental Analysis for C25H19NO4.0.50 H2O: Calculated: C, 73.87; H, 4.96; N, 3.45. Found: C, 73.54; H, 4.64; N, 3.32.

1. customAfter drying for 15 hours at 96° C.