(5-bromo-1H-indol-2-yl)methanol

反応条件: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (5-bromo-1H-indol-2-yl) methanol (9 g, 39.8 mmol), 3-methylbenzeneboronic acid (6.14 g, 43.78 mmol), potassium carbonate (13.75 g, 99.5 mmol), palladium(II) acetate (0.045 g) and tetrabutylammonium bromide (12.84 g, 39.8 mmol) in 10% dioxane in water (degassed, 0.38 L) was stirred at 70° C. The reaction was monitored by TLC. Additional 3-methylbenzeneboronic acid (5.6 g, 39.8 mmol) was added. After no 5-bromo-1-(4-tert-butylbenzyl)-1H-indole was detected by TLC, the reaction was cooled to room temperature and the solvent was decanted. The residual thick oil was stirred with hexane. The hexane was decanted and the residue was partitioned between water and ethyl acetate. The ethyl acetate layer was separated, washed with water filtered and concentrated. The residue was purified by flash column chromatography using hexane/ethyl acetate (55:45) as an eluant to give [5-(3-Methylphenyl)-1H-indol-2-yl]methanol as a brown solid (6.0 g). Reaction of [5-(3-Methylphenyl)-1H-indol-2-yl]methanol with acetyl chloride according to the procedure described in step 4 of Example 1 afforded the title compound as an oil (3.94 g); Mass spectrum (ESI, [M−H]−) m/z 278. 1H NMR (400 MHz, DMSO-d6) δ 7.76 (s, 1H), 7.46 (s, 1H), 7.42-7.36 (m, 3H), 7.30 (s, 1H), 7.10 (d, 1H, J=7.48 Hz), 6.50 (s, 1H), 2.37 (s, 3H), and 2.07 ppm (s, 3H). the reaction was cooled to room temperature the solvent was decanted The residual thick oil was stirred with hexane The hexane was decanted the residue was partitioned between water and ethyl acetate The ethyl acetate layer was separated washed with water filtered concentrated The residue was purified by flash column chromatography

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The title compound was prepared from ethyl 5-bromo-1H-indole-2-carboxylate and lithium aluminum in substantially the same manner, as described in step 3 of Example 1. The product was obtained as a solid; mp: 111-112° C. Mass spectrum (ESI, [M−H]−) m/z 224. 1H NMR (400 MHz, DMSO-d6) δ 7.62 (s, 1H), 7.27 (d, 1H, J =8.02 Hz), 7.12 (d, 1H, J=8.02 Hz), 6.25 (s, 1H), 5.29 (t, 1H, J=5.50 Hz), 4.59 ppm (d, 2H, J=5.6 Hz). The product was obtained as a solid

反応条件: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (5-bromo-1H-indol-2-yl)methanol (9 g, 39.8 mmol), 3-methylbenzeneboronic acid (6.14 g, 43.78 mmol), potassium carbonate (13.75 g, 99.5 mmol), palladium(II) acetate (0.045 g) and tetrabutylammonium bromide (12.84 g, 39.8 mmol) in 10% dioxane in water (degassed, 0.38 L) was stirred at 70° C. The reaction was monitored by TLC. Additional 3-methylbenzeneboronic acid (5.6 g, 39.8 mmol) was added. After no 5-bromo-1-(4-tert-butylbenzyl)-1H-indole was detected by TLC, the reaction was cooled to room temperature and the solvent was decanted. The residual thick oil was stirred with hexane. The hexane was decanted and the residue was partitioned between water and ethyl acetate. The ethyl acetate layer was separated, washed with water filtered and concentrated. The residue was purified by flash column chromatography using hexane/ethyl acetate (55:45) as an eluant to give [5-(3-Methylphenyl)-1H-indol-2-yl]methanol as a brown solid (6.0 g). Reaction of [5-(3-Methylphenyl)-1H-indol-2-yl]methanol with acetyl chloride according to the procedure described in step 4 of Example 1 afforded the title compound as an oil (3.94 g); Mass spectrum (ESI, [M−H]−) m/z 278. 1H NMR (400 MHz, DMSO-d6) δ 7.76 (s, 1H), 7.46 (s, 1H), 7.42–7.36 (m, 3H), 7.30 (s, 1H), 7.10 (d, 1H, J=7.48 Hz), 6.50 (s, 1H), 2.37 (s, 3H), and 2.07 ppm (s, 3H). the reaction was cooled to room temperature the solvent was decanted The residual thick oil was stirred with hexane The hexane was decanted the residue was partitioned between water and ethyl acetate The ethyl acetate layer was separated washed with water filtered concentrated The residue was purified by flash column chromatography

反応条件: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (5-bromo-1H-indol-2-yl)methanol (9 g, 39.8 mmol), 3-methylbenzeneboronic acid (6.14 g, 43.78 mmol), potassium carbonate (13.75 g, 99.5 mmol), palladium(II) acetate (0.045 g) and tetrabutylammonium bromide (12.84 g, 39.8 mmol) in 10% dioxane in water (degassed, 0.38 L) was stirred at 70° C. The reaction was monitored by TLC. Additional 3-methylbenzeneboronic acid (5.6 g, 39.8 mmol) was added. After no 5-bromo-1-(4-tert-butylbenzyl)-1H-indole was detected by TLC, the reaction was cooled to room temperature and the solvent was decanted. The residual thick oil was stirred with hexane. The hexane was decanted and the residue was partitioned between water and ethyl acetate. The ethyl acetate layer was separated, washed with water filtered and concentrated. The residue was purified by flash column chromatography using hexane/ethyl acetate (55:45) as an eluant to give [5-(3-Methylphenyl)-1H-indol-2-yl]methanol as a brown solid (6.0 g). Reaction of [5-(3-Methylphenyl)-1H-indol-2-yl]methanol with acetyl chloride according to the procedure described in step 4 of Example 1 afforded the title compound as an oil (3.94 g); Mass spectrum (ESI, [M−H]−) m/z 278. 1H NMR (400 MHz, DMSO-d6) δ 7.76 (s, 1H), 7.46 (s, 1H), 7.42–7.36 (m, 3H), 7.30 (s, 1H), 7.10 (d, 1H, J=7.48 Hz), 6.50 (s, 1H), 2.37 (s, 3H), and 2.07 ppm (s, 3H). the reaction was cooled to room temperature the solvent was decanted The residual thick oil was stirred with hexane The hexane was decanted the residue was partitioned between water and ethyl acetate The ethyl acetate layer was separated washed with water filtered concentrated The residue was purified by flash column chromatography

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The title compound was prepared from ethyl 5-bromo-1H-indole-2-Carboxylate and lithium aluminum in substantially the same manner, as described in step 3 of Example 1. The product was obtained as a solid; mp: 111–112° C. Mass spectrum (ESI, [M−H]−) m/z 224. 1H NMR (400 MHz, DMSO-d6) δ 7.62 (s, 1H), 7.27 (d, 1H, J=8.02 Hz), 7.12 (d, 1H, J=8.02 Hz), 6.25 (s, 1H), 5.29 (t, 1H, J=5.50 Hz), 4.59 ppm (d, 2H, J=5.65 Hz). The product was obtained as a solid

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: The title compound was prepared from ethyl 5-bromo-1H-indole-2-Carboxylate and lithium aluminum in substantially the same manner, as described in step 3 of Example 1. The product was obtained as a solid; mp: 111–112° C. Mass spectrum (ESI, [M−H]−) m/z 224. 1H NMR (400 MHz, DMSO-d6) δ 7.62 (s, 1H), 7.27 (d, 1H, J=8.02 Hz), 7.12 (d, 1H, J=8.02 Hz), 6.25 (s, 1H), 5.29 (t, 1H, J=5.50 Hz), 4.59 ppm (d, 2H, J=5.65 Hz). The product was obtained as a solid