N-methyl-1-benzofuran-2-carboxamide

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

実験手順: To a solution of 1.0 M BH3/THF (30 mL, 30 mmole) at 0° C. was added N-methylbenzofuran-2-carboxamide (1.75 g, 10 mmole). The reaction mixture was allowed to warm to RT, then was heated at reflux overnight. The reaction was cooled to 0° C. and excess methanol was added. The resulting solution was concentrated in vacuo and the residue was purified by flash chromatography on silica gel (3% MeOH/CH2Cl2). The tile compound (0.2 g, 12%) was obtained as a white solid: MS (ES) m/e 162 (M+H)+. was heated at reflux overnight The reaction was cooled to 0° C. The resulting solution was concentrated in vacuo the residue was purified by flash chromatography on silica gel (3% MeOH/CH2Cl2)

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

実験手順: To a solution of 2-benzofurancarboxylic acid (1.62 g, 10 mmole), methylamine hydrochloride (0.79 g, 11 mmole), triethylamine (3.1 ML, 22 mmole), and HOBt.H2O (1.5 g, 11 mmole) in DMF (30 mL) was added EDC (2.1 g, 11 mmole). The reaction was stirred overnight then was concentrated in vacuo. The residue was diluted with 5% NaHCO3 and extracted with CH2Cl2. The combined organic extracts were washed with brine, dried over MgSO4, and concentrated. Flash chromatography on silica gel (3% MeOH/CH2Cl2) gave the title compound (1.75 g, 100%) as white solid: MS (ES) m/e 176 (M+H)+. then was concentrated in vacuo The residue was diluted with 5% NaHCO3 extracted with CH2Cl2 The combined organic extracts were washed with brine dried over MgSO4 concentrated

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

実験手順: To a solution of 1.0 M BH3/THF (30 mL, 30 mmole) at 0° C. was added N-methylbenzofuran-2-carboxamide (1.75 g, 10 mmole). The reaction mixture was allowed to warm to RT, then was heated at reflux overnight. The reaction was cooled to 0° C. and excess methanol was added. The resulting solution was concentrated in vacuo and the residue was purified by flash chromatography on silica gel (3% MeOH/CH2Cl2). The tile compound (0.2 g, 12%) was obtained as a white solid: MS (ES) m/e 162 (M+H)+. was heated at reflux overnight The reaction was cooled to 0° C. The resulting solution was concentrated in vacuo the residue was purified by flash chromatography on silica gel (3% MeOH/CH2Cl2)

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

実験手順: To a solution of 2-benzofurancarboxylic acid (1.62 g, 10 mmole), methylamine hydrochloride (0.79 g, 11 mmole), triethylamine (3.1 ML, 22 mmole), and HOBt.H2O (1.5 g, 11 mmole) in DMF (30 mL) was added EDC (2.1 g, 11 mmole). The reaction was stirred overnight then was concentrated in vacuo. The residue was diluted with 5% NaHCO3 and extracted with CH2Cl2. The combined organic extracts were washed with brine, dried over MgSO4, and concentrated. Flash chromatography on silica gel (3% MeOH/CH2Cl2) gave the title compound (1.75 g, 100%) as white solid: MS (ES) m/e 176 (M+H)+. then was concentrated in vacuo The residue was diluted with 5% NaHCO3 extracted with CH2Cl2 The combined organic extracts were washed with brine dried over MgSO4 concentrated

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

実験手順: To a solution of 1.0 M BH3/THF (30 mL, 30 mmole) at 0° C. was added N-methylbenzofuran-2-carboxamide (1.75 g, 10 mmole). The reaction mixture was allowed to warm to RT, then was heated at reflux overnight. The reaction was cooled to 0° C. and excess methanol was added. The resulting solution was concentrated in vacuo and the residue was purified by flash chromatography on silica gel (3% MeOH/CH2Cl2). The tile compound (0.2 g, 12%) was obtained as a white solid: MS (ES) m/e 162 (M+H)+. was heated at reflux overnight The reaction was cooled to 0° C. The resulting solution was concentrated in vacuo the residue was purified by flash chromatography on silica gel (3% MeOH/CH2Cl2)

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

実験手順: To a solution of 2-benzofurancarboxylic acid (1.62 g, 10 mmole), methylamine hydrochloride (0.79 g, 11 mmole), triethylamine (3.1 mL, 22 mmole), and HOBt.H2O (1.5 g, 11 mmole) in DMF (30 mL) was added EDC (2.1 g, 11 mmole). The reaction was stirred overnight then was concentrated in vacuo. The residue was diluted with 5% NaHCO3 and extracted with CH2Cl2. The combined organic extracts were washed with brine, dried over MgSO4, and concentrated. Flash chromatography on silica gel (3% MeOH/CH2Cl2) gave the title compound (1.75 g, 100%) as white solid: MS (ES) m/e 176 (M+H)+. then was concentrated in vacuo The residue was diluted with 5% NaHCO3 extracted with CH2Cl2 The combined organic extracts were washed with brine dried over MgSO4 concentrated

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

実験手順: To a solution of 1.0 M BH3/THF (30 mL, 30 mmole) at 0° C. was added N-methylbenzofuran-2-carboxamide (1.75 g, 10 mmole). The reaction mixture was allowed to warm to RT, then was heated at reflux overnight. The reaction was cooled to 0° C. and excess methanol was added. The resulting solution was concentrated in vacuo and the residue was purified by flash chromatography on silica gel (3% MeOH/CH2Cl2). The tile compound (0.2 g, 12%) was obtained as a white solid: MS (ES) m/e 162 (M+H)+. was heated at reflux overnight The reaction was cooled to 0° C. The resulting solution was concentrated in vacuo the residue was purified by flash chromatography on silica gel (3% MeOH/CH2Cl2)

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

実験手順: To a solution of 2-benzofurancarboxylic acid (1.62 g, 10 mmole), methylamine hydrochloride (0.79 g, 10 mmole), triethylamine (3.1 mL, 22 mmole), and HOBt.H2O (1.5 g, 11 mmole) in DMF (30 mL) was added EDC (2.1 g, 11 mmole). The reaction was stirred overnight then was concentrated in vacuo. The residue was diluted with 5% NaHCO3 and extracted with CH2Cl2. The combined organic extracts were washed with brine, dried over MgSO4, and concentrated. Flash chromatography on silica gel (3% MeOH/CH2Cl2) gave the title compound (1.75 g, 100%) as white solid: MS (ES) m/e 176 (M+H)+. then was concentrated in vacuo The residue was diluted with 5% NaHCO3 extracted with CH2Cl2 The combined organic extracts were washed with brine dried over MgSO4 concentrated

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

実験手順: To a solution of 1.0 M BH3/THF; (30 mL, 30 mmole) at 0° C. was added N-methylbenzofuran-2-carboxamide (1.75 g, 10 mmole). The reaction mixture was allowed to warm to RT, then was heated at reflux overnight. The reaction was cooled to 0° C. and excess methanol was added. The resulting solution was concentrated in vacuo and the residue was purified by flash chromatography on silica gel (3% MeOHICH2Cl2). The tile compound (0.2 g,12%) was obtained as a white solid: MS (ES) m/e 162 (M+H)+. was heated at reflux overnight The reaction was cooled to 0° C. The resulting solution was concentrated in vacuo the residue was purified by flash chromatography on silica gel (3% MeOHICH2Cl2)

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

実験手順: To a solution of 2-benzofurancarboxylic acid (1.62 9,10 mmole), methylamine hydrochloride (0.79 g. 11 mmole), triethylamine (3.1 mL, 22 mmole), and HOBt 1H2O (1.5 g, 11 mmole) in DMF (30 mL) was added EDC (2.1 g, 11 mmole). The reaction was stirred overnight then was concentrated in vacuo. The residue was diluted with 5% NaHCO3 and extracted with CH2Cl2. The combined organic extracts were washed with brine, dried over MgSO4, and concentrated. Flash chromatography on silica gel (3% MeOIVCH2Cl2) gave the title compound (1.75 g, 100%) as white solid: MS (ES) m/e 176 (M+H)+. then was concentrated in vacuo The residue was diluted with 5% NaHCO3 extracted with CH2Cl2 The combined organic extracts were washed with brine dried over MgSO4 concentrated

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

実験手順: To a solution of 1.0 M BH3/THF (30 mL, 30 mmole) at 0° C. was added N-methylbenzofuran-2-carboxamide (1.75 g, 10 mmole). The reaction mixture was allowed to warm to RT, then was heated at reflux overnight. The reaction was cooled to 0° C. and excess methanol was added. The resulting solution was concentrated in vacuo and the residue was purified by flash chromatography on silica gel (3% MeOH/CH2Cl2). The tile compound (0.2 g, 12%) was obtained as a white solid: MS (ES) m/e 162 (M+H)+. was heated at reflux overnight The reaction was cooled to 0° C. The resulting solution was concentrated in vacuo the residue was purified by flash chromatography on silica gel (3% MeOH/CH2Cl2)

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

実験手順: To a solution of 2-benzofurancarboxylic acid (1.62 g, 10 mmole), methylamine hydrochloride (0.79 g, 11 mmole), triethylamine (3.1 mL, 22 mmole), and HOBt.H2O (1.5 g, 11 mmole) in DMF (30 mL) was added EDC (2.1 g, 11 mmole). The reaction was stirred overnight then was concentrated in vacuo. The residue was diluted with 5% NaHCO3 and extracted with CH2Cl2. The combined organic extracts were washed with brine, dried over MgSO4, and concentrated. Flash chromatography on silica gel (3% MeOH/CH2Cl2) the title compound (1.75 g, 100%) as white solid: MS (ES) m/e 176 (M+H)+. then was concentrated in vacuo The residue was diluted with 5% NaHCO3 extracted with CH2Cl2 The combined organic extracts were washed with brine dried over MgSO4 concentrated