2-amino-N,N-dimethylacetamide

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

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

実験手順: {2-[2-(6-Chloro-benzothiazol-2-ylamino)-5-(dimethylcarbamoylmethyl-carbamoyl)-benzoimidazol-1-yl]ethyl}-methyl-carbamic acid tert-butyl ester (70 mg) was prepared by following General Procedure F starting from 1-[2-(tert-butoxycarbonyl-methyl-amino)-ethyl]-2-(6-chloro-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid (146 mg), 2-amino-N,N-dimethyl-acetamide (50 mg), HBTU (125 mg), and DIEA (100 uL) in DMF (1 mL).

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

実験手順: 2-(6-Chloro-benzothiazol-2-ylamino)-1-(2-methoxy-ethyl)-1H-benzoimidazole-5-carboxylic acid dimethylcarbamoylmethyl-amide (24 mg) was prepared by following General Procedure F starting from 2-(6-chloro-benzothiazol-2-ylamino)-1-(2-methoxy-ethyl)-1H-benzoimidazole-5-carboxylic acid (80 mg), 2-amino-N,N-dimethyl-acetamide (40 mg), HBTU (95 mg), and DIEA (70 uL) in DMF (1 mL). LC/MS: m/z 486.5. 1H NMR (DMSO-d6, 400 MHz): δ 8.57-8.56 (m, 1H), 8.11 (s, 1H), 8.01-8.00 (d, 1H), 7.84-7.82 (m, 1H), 7.63-7.61 (d, 1H), 7.57-7.54 (d, 1H), 7.46-7.44 (m, 1H), 4.43-4.40 (t, 2H), 4.14-4.13 (d, 2H), 3.75-3.72 (t, 2H), 3.24 (s, 3H), 3.04 (s, 3H), 2.87 (s, 3H), —NH proton signal was not observed.

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

実験手順: 1-(2-Methoxy-ethyl)-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid dimethylcarbamoylmethyl-amide (35.0 mg) was prepared by following General Procedure F starting from 1-(2-methoxy-ethyl)-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid (100.0 mg), 2-amino-N,N-dimethyl-acetamide (25.0 mg), HBTU (190.0 mg) and DIEA (0.2 mL) in DMF (1.0 mL). LCMS: m/z 537.6; and 1H NMR (DMSO-d6, 400 MHz): δ 8.59 (1H, m), 7.90 (1H, br. s), 7.72 (1H, br. s), 7.56-7.54 (1H, m), 7.38-7.31 (2H, m), 7.18 (1H, m), 4.30-4.27 (2H, t), 4.11-4.10 (2H, d), 3.70-3.67 (2H, t), 3.25 (3H, s), 3.03 (3H, s), 2.87 (3H, s), —NH proton signal was not observed.

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

実験手順: 1-Ethyl-2-(6-trifluoromethyl-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid dimethylcarbamoylmethyl-amide (40.0 mg) was prepared by following General Procedure F starting from 1-ethyl-2-(6-trifluoromethyl-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid (100.0 mg), 2-amino-N,N-dimethyl-acetamide (25.0 mg), HBTU (190.0 mg) and DIEA (0.2 mL) in DMF (1.0 mL). LCMS: m/z 492; and 1H NMR (DMSO-d6, 400 MHz): δ 8.25 (1H, m), 7.88-7.84 (2H, m), 7.51-7.49 (1H, m), 7.37-7.28 (2H, m), 7.19-7.18 (1H, m), 4.18-4.15 (2H, m), 4.11-4.09 (2H, m), 3.03 (3H, s), 2.87 (3H, s), 1.29-1.23 (3H, t), —NH proton signal was not observed.

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

実験手順: 1-Ethyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid dimethylcarbamoylmethyl-amide (45.0 mg) was prepared by following General Procedure F starting from 1-ethyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid (100.0 mg), 2-amino-N,N-dimethyl-acetamide (25.0 mg), HBTU (190.0 mg) and DIEA (0.2 mL) in DMF (1.0 mL). LCMS: m/z 508; and 1H NMR (DMSO-d6, 400 MHz): δ 8.19 (1H, br. s), 7.88 (1H, br. s), 7.68 (1H, br. s), 7.55 (1H, br. s), 7.34-7.24 (2H, m), 7.13 (1H, m), 4.19-4.16 (2H, m), 4.12-4.10 (2H, d), 3.03 (3H, s), 2.88 (3H, s), 1.31-1.27 (3H, t), —NH proton signal was not observed.

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

実験手順: 1-Methyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid dimethylcarbamoylmethyl-amide (41 mg) was prepared by following General Procedure F using 1-methyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzimidazole-5-carboxylic acid (41 mg), 2-amino-N,N-dimethyl-acetamide (0.33 ml), HBTU (38 mg), and DIEA (0.1 ml). LC/MS: m/z 494. 1H NMR (DMSO-d6, 400 MHz): δ 8.42 (t, 1H), 8.09 (s, 1H), 7.90 (m, 1H), 7.78 (br, 1H), 7.72 (br, 1H), 7.48 (d, 1H), 7.44 (d, 1H), 7.34 (m, 1H), 4.11 (d, 2H), 3.63 (s, 3H), and 3.00 (d, 6H).

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

実験手順: A solution of chloroacetyl chloride (1.7 g) in dichloromethane was stirred in an ice-bath, while a solution of N,N-dimethylglycinamide (1.8 g) and triethylamine (2.2 ml) in dichloromethane (20 ml) was added over 20 minutes. The reaction mixture was stirred for 30 minutes and was then washed with water (2×10 ml), and dried over MgSO4. The solution was evaporated under reduced pressure. Thus was obtained N,N-dimethyl chloroacetylglycinamide (2.0 g) as a brown oil, which was used directly, and without further purification. was added over 20 minutes was then washed with water (2×10 ml) dried over MgSO4 The solution was evaporated under reduced pressure

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

実験手順: Following general procedure GP-A, a mixture of methyl 2-chlorobenzoxazole-4-carboxylate and 2-amino-N,N-dimethylacetamide provided methyl 2-(2-(dimethylamino)-2-oxoethylamino)benzoxazole-4-carboxylate. 1H NMR and MS consistent.

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

実験手順: Following general procedure GP-A, a mixture of methyl 2-chlorobenzoxazole-4-carboxylate and 2-amino-N,N-dimethylacetamide provided methyl 2-(2-(dimethylamino)-2-oxoethylamino)benzoxazole-4-carboxylate. 1H NMR and MS consistent.

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

実験手順: To a cold (0° C.) solution of 2-amino-N,N-dimethylacetamide (1.62 g, 10 mmol) and triethylamine (3.4 mL, 25 mmol) in dichloromethane (50 mL), methanesulfonyl chloride (0.85 mL, 11 mmol) was added over a period of 5 minutes. The resultant mixture was stirred at room temperature for overnight. The product mixture was diluted with dichloromethane and washed with sat. aq. sodium bicarbonate. The organic extract was dried over anhydrous magnesium sulfate, filtered and concentrated under vacuum to provide the title acetamide as white solid. washed with sat. aq. sodium bicarbonate The organic extract was dried over anhydrous magnesium sulfate filtered concentrated under vacuum