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18162-48-6872-50-4Methylene ChloridenaphthaleneTHFTitanium Dioxide
1312755-50-2

1H-Pyrrolo[2,3-b]pyridine-3-carboxylic acid, 2-[[(cyanoMethyl)[(4-Methylphenyl)sulfonyl]aMino]Methyl]-5-fluoro-1-(phenylsulfonyl)-, Methyl ester synthesis

6synthesis methods
1H-Pyrrolo[2,3-b]pyridine-3-carboxylic acid, 2-(broMoMethyl)-5-fluoro-1-(phenylsulfonyl)-, Methyl ester

1312755-49-9
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20228-87-9 Synthesis
N-cyanomethyl-4-methyl-benzenesulfonamide

20228-87-9
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1H-Pyrrolo[2,3-b]pyridine-3-carboxylic acid, 2-[[(cyanoMethyl)[(4-Methylphenyl)sulfonyl]aMino]Methyl]-5-fluoro-1-(phenylsulfonyl)-, Methyl ester

1312755-50-2
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Yield:1312755-50-2 82%

Reaction Conditions:

Stage #1: 1-benzenesulfonyl-5-fluoro-2-bromomethyl-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid methyl ester;N-(cyanomethyl)-(4-methylphenyl)sulfonamidewith sodium hydride in N,N-dimethyl-formamide;mineral oil at 0 - 20;
Stage #2: with hydrogenchloride in water;N,N-dimethyl-formamide;mineral oil;

Steps:



Step 7 : l-Benzenesulfonyl-5-fluoro-2-{ rcyanomethyl-(toluene-4-sulfonyl)aminol- methyl|-lH-pyrrolor2,3-blpyridine-3-carboxylic acid methyl esterSodium hydride (1.6 g, 60% dispersion in mineral oil, 40.5 mmol) was added portionwise to a cooled (0 °C) solution of l-benzenesulfonyl-5-fluoro-2-bromomethyl-lH-pyrrolo[2,3- b]pyridine-3-carboxylic acid methyl ester (15.8 g, 36.9 mmol) and N-cyanomethyl-4- methyl-benzenesulfonamide (8.5 g, 40.5 mmol) in DMF (150 mL). The reaction mixture was stirred at 0 °C for 15 minutes, then allowed to warm to ambient temperature and stirred for 1 hour. The reaction mixture was poured into a cooled, stirred solution of 2M hydrochloric acid (400 mL). The resultant precipitate was collected by filtration (slow) and the cake washed with water, followed by methanol and then diethyl ether. The resulting cake was dried to afford the title compound as a grey solid (16.7 g, 82%). NMR (400 MHz, DMSO-d6): 8.49 (dd, J = 2.8, 1.2 Hz, 1H), 8.24-8.24 (m, 2H), 8.14 (dd, J = 8.8, 2.8 Hz, 1H), 7.75-7.74 (m, 1H), 7.70-7.68 (m, 2H), 7.62-7.62 (m, 2H), 7.39-7.35 (m, 2H), 5.36 (s, 2H), 4.42 (s, 2H), 3.88 (s, 3H), 2.36 (s, 3H).

References:

WO2011/73263,2011,A1 Location in patent:Page/Page column 86-87

21717-96-4 Synthesis
2-Amino-5-fluoropyridine

21717-96-4
426 suppliers
$10.00/1g

1H-Pyrrolo[2,3-b]pyridine-3-carboxylic acid, 2-[[(cyanoMethyl)[(4-Methylphenyl)sulfonyl]aMino]Methyl]-5-fluoro-1-(phenylsulfonyl)-, Methyl ester

1312755-50-2
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References
5-FLUORO-3-IODO-PYRIDIN-2-YLAMINE

823218-51-5
100 suppliers
$64.00/1g

1H-Pyrrolo[2,3-b]pyridine-3-carboxylic acid, 2-[[(cyanoMethyl)[(4-Methylphenyl)sulfonyl]aMino]Methyl]-5-fluoro-1-(phenylsulfonyl)-, Methyl ester

1312755-50-2
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References
2-PyridinaMine, 5-fluoro-3-(1-propyn-1-yl)-

1312755-46-6
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1H-Pyrrolo[2,3-b]pyridine-3-carboxylic acid, 2-[[(cyanoMethyl)[(4-Methylphenyl)sulfonyl]aMino]Methyl]-5-fluoro-1-(phenylsulfonyl)-, Methyl ester

1312755-50-2
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References
1H-Pyrrolo[2,3-b]pyridine-3-carboxylic acid, 5-fluoro-2-Methyl-, Methyl este

1312755-47-7
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1H-Pyrrolo[2,3-b]pyridine-3-carboxylic acid, 2-[[(cyanoMethyl)[(4-Methylphenyl)sulfonyl]aMino]Methyl]-5-fluoro-1-(phenylsulfonyl)-, Methyl ester

1312755-50-2
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References