Synthesis of 1H-pyrazolo[3,4-b]pyridine analogues

Many compounds containing the pyrazolo[3,4-b]pyridine scaffold have been found to have various pharmacological activities such as anticancer, anti-inflammatory, anti-bacterial, antihyperglycemic, and anxiolytic properties. In general, low water solubility often hinders bioassay screening of small mo...

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Main Authors: Yen Nguyen, Greg Petruncio, Schroeder M. Noble, Mikell Paige
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Results in Chemistry
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Online Access:http://www.sciencedirect.com/science/article/pii/S221171562500058X
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author Yen Nguyen
Greg Petruncio
Schroeder M. Noble
Mikell Paige
author_facet Yen Nguyen
Greg Petruncio
Schroeder M. Noble
Mikell Paige
author_sort Yen Nguyen
collection DOAJ
description Many compounds containing the pyrazolo[3,4-b]pyridine scaffold have been found to have various pharmacological activities such as anticancer, anti-inflammatory, anti-bacterial, antihyperglycemic, and anxiolytic properties. In general, low water solubility often hinders bioassay screening of small molecules. In this work, we have prepared a series of 1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid analogues through the condensation of 5-aminopyrazoles with aromatic aldehydes and pyruvic acid. We then converted the carboxylic acid handle on these heterocycles into the corresponding sodium salt, which improved the water solubility.
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publishDate 2025-03-01
publisher Elsevier
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series Results in Chemistry
spelling doaj-art-5534b69f13ae4bd4bfa22ecc5b870ab42025-02-05T04:31:56ZengElsevierResults in Chemistry2211-71562025-03-0114102075Synthesis of 1H-pyrazolo[3,4-b]pyridine analoguesYen Nguyen0Greg Petruncio1Schroeder M. Noble2Mikell Paige3Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Cir, Manassas, VA 20110, USA; Center for Molecular Engineering, George Mason University, 10920 George Mason Cir, Manassas, VA 20110, USA; Corresponding authors at: Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Cir, Manassas, VA 20110, USA.Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Cir, Manassas, VA 20110, USA; Center for Molecular Engineering, George Mason University, 10920 George Mason Cir, Manassas, VA 20110, USABacterial Diseases Branch, Wound Infections Department, Walter Reed Army Institute of Research, 503 Robert Grant Ave, Silver Spring, MD 20910, USADepartment of Chemistry & Biochemistry, George Mason University, 10920 George Mason Cir, Manassas, VA 20110, USA; Center for Molecular Engineering, George Mason University, 10920 George Mason Cir, Manassas, VA 20110, USA; Corresponding authors at: Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Cir, Manassas, VA 20110, USA.Many compounds containing the pyrazolo[3,4-b]pyridine scaffold have been found to have various pharmacological activities such as anticancer, anti-inflammatory, anti-bacterial, antihyperglycemic, and anxiolytic properties. In general, low water solubility often hinders bioassay screening of small molecules. In this work, we have prepared a series of 1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid analogues through the condensation of 5-aminopyrazoles with aromatic aldehydes and pyruvic acid. We then converted the carboxylic acid handle on these heterocycles into the corresponding sodium salt, which improved the water solubility.http://www.sciencedirect.com/science/article/pii/S221171562500058XCyclocondensation1H-pyrazolo[3,4-b]pyridine1H-pyrazolo[3,4-b]pyridine-4-carboxylic acidWater solubilityCarboxylate salts
spellingShingle Yen Nguyen
Greg Petruncio
Schroeder M. Noble
Mikell Paige
Synthesis of 1H-pyrazolo[3,4-b]pyridine analogues
Results in Chemistry
Cyclocondensation
1H-pyrazolo[3,4-b]pyridine
1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid
Water solubility
Carboxylate salts
title Synthesis of 1H-pyrazolo[3,4-b]pyridine analogues
title_full Synthesis of 1H-pyrazolo[3,4-b]pyridine analogues
title_fullStr Synthesis of 1H-pyrazolo[3,4-b]pyridine analogues
title_full_unstemmed Synthesis of 1H-pyrazolo[3,4-b]pyridine analogues
title_short Synthesis of 1H-pyrazolo[3,4-b]pyridine analogues
title_sort synthesis of 1h pyrazolo 3 4 b pyridine analogues
topic Cyclocondensation
1H-pyrazolo[3,4-b]pyridine
1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid
Water solubility
Carboxylate salts
url http://www.sciencedirect.com/science/article/pii/S221171562500058X
work_keys_str_mv AT yennguyen synthesisof1hpyrazolo34bpyridineanalogues
AT gregpetruncio synthesisof1hpyrazolo34bpyridineanalogues
AT schroedermnoble synthesisof1hpyrazolo34bpyridineanalogues
AT mikellpaige synthesisof1hpyrazolo34bpyridineanalogues