Synthesis of 1-(1,3-dialkyl-2-oxo-2,3-dihydro-1H-imidazo-[4,5-b]pyridin-5-yl)-5-oxopyrrolidine-3-carboxylic acids

Smolyar, N. N.; Troyan, N. N.; Vasilechko, A. B.; Lomov, D. A.; Yutilov, Yu. M.

doi:10.1134/s1070428007110206

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Cited by 3 publications

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“…1,3-Dialkyl-5-amino-1H-imidazo[4,5-b]pyridin-2(3H)-ones 1a and 1b were synthesized according to the procedure described in [9].…”

Section: Methodsmentioning

confidence: 99%

Recyclization of 1,3-dialkyl-6-nitro-1H-imidazo[4,5-b]pyridine-2,5(3H,4H)-diones into imidazole derivatives

Lomov

2016

Russ J Org Chem

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Treatment of 5-amino-1,3-dialkyl-2,3-dihydro-1H-imidazo[4,5-b]pyridin-2-ones with sodium nitrite in aqueous HCl gave 1,3-dialkyl-1H-imidazo[4,5-b]pyridine-2,5(3H,4H)-diones which were nitrated with potassium nitrate in sulfuric acid to 6-nitro derivatives, and the latter underwent recyclization into 4-amino-1,3dialkyl-5-(1H-pyrazol-5-yl)-2,3-dihydro-1H-imidazol-2-ones by the action of hydrazine hydrate. R = Me (a), Et (b).

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“…1,3-Dialkyl-5-amino-1H-imidazo[4,5-b]pyridin-2(3H)-ones 1a and 1b were synthesized according to the procedure described in [9].…”

Section: Methodsmentioning

confidence: 99%

Recyclization of 1,3-dialkyl-6-nitro-1H-imidazo[4,5-b]pyridine-2,5(3H,4H)-diones into imidazole derivatives

Lomov

2016

Russ J Org Chem

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ChemInform Abstract: Synthesis of 1‐(1,3‐Dialkyl‐2‐oxo‐2,3‐dihydro‐1H‐imidazo [4,5‐b]pyridin‐5‐yl)‐5‐oxopyrrolidine‐3‐carboxylic Acids (V)

et al. 2008

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Reactions of 1,3-Dialkyl-5-amino-1,3-dihydro-2H-imidazo-[4,5-b]pyridin-2-ones with acetylacetone and ethyl acetoacetate

Smolyar

Lomov

2009

Russ J Org Chem

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Synthesis of 1-(1,3-dialkyl-2-oxo-2,3-dihydro-1H-imidazo-[4,5-b]pyridin-5-yl)-5-oxopyrrolidine-3-carboxylic acids

Cited by 3 publications

References 1 publication

Recyclization of 1,3-dialkyl-6-nitro-1H-imidazo[4,5-b]pyridine-2,5(3H,4H)-diones into imidazole derivatives

Recyclization of 1,3-dialkyl-6-nitro-1H-imidazo[4,5-b]pyridine-2,5(3H,4H)-diones into imidazole derivatives

ChemInform Abstract: Synthesis of 1‐(1,3‐Dialkyl‐2‐oxo‐2,3‐dihydro‐1H‐imidazo [4,5‐b]pyridin‐5‐yl)‐5‐oxopyrrolidine‐3‐carboxylic Acids (V)

Reactions of 1,3-Dialkyl-5-amino-1,3-dihydro-2H-imidazo-[4,5-b]pyridin-2-ones with acetylacetone and ethyl acetoacetate

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