1314734-59-2Relevant articles and documents
Synthetic method of 3-formyl-1H-pyrazolo [3, 4-b] pyridine-5-carboxylic acid methyl ester
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, (2021/11/19)
The invention discloses a synthetic method of 3-formyl-1H-pyrazolo [3, 4-b] pyridine-5-carboxylic acid methyl ester. The method comprises the following steps: by taking 5-bromo-1H-pyrazolo [3, 4-b] pyridine-3-carboxylic acid as a raw material, carrying out condensation to obtain weinreb amide 5-bromo-N-methoxy-N-methyl-1H-pyrazolo [3, 4-b] pyridine-3-carboxamide; carrying out DHP protection to obtain 5-bromo-N-methoxy-N-methyl-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo [3, 4-b]pyridine-3-formamide; reducing the weinreb amide by using lithium aluminum hydride to obtain 5-bromine-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo [3, 4-b] pyridine-3-formaldehyde; carrying out carbonyl insertion reaction on 5-bromine-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo [3, 4-b] pyridine-3-formaldehyde to obtain 3-formyl-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo [3, 4-b] pyridine-5-carboxylic acid methyl ester, and finally, carrying out THP removal protection to obtain the product 3-formyl-1H-pyrazolo [3, 4-b] pyridine-5-carboxylic acid methyl ester. The route is mild in reaction condition, simple in subsequent operation and environment-friendly, the product is prepared with high yield and high purity, and the method is suitable for industrial process amplification.
3-(1H-IMIDAZO[4,5-C]PYRIDIN-2-YL)-1H-PYRAZOLO[3,4-B]PYRIDINE AND THERAPEUTIC USES THEREOF
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Paragraph 0711, (2016/06/01)
Azaindazole compounds for treating various diseases and pathologies are disclosed. More particularly, the present invention concerns the use of an azaindazole compound or analogs thereof, in the treatment of disorders characterized by the activation of Wnt pathway signaling (e.g., cancer, abnormal cellular proliferation, angiogenesis, fibrotic disorders, bone or cartilage diseases, and osteoarthritis), the modulation of cellular events mediated by Wnt pathway signaling, as well as genetic diseases and neurological conditions/disorders/diseases due to mutations or dysregulation of the Wnt pathway and/or of one or more of Wnt signaling components. Also provided are methods for treating Wnt-related disease states.
1H-PYRAZOLO[3,4-B]PYRIDINES AND THERAPEUTIC USES THEREOF
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Page/Page column 106; 110; 114, (2011/08/03)
Provided herein are compounds according to Formula (I) and pharmaceutically acceptable salts thereof, and compositions comprising the same, for use in various methods, including treating cancers such as colon, ovarian, pancreatic, breast, liver, prostate and hematologic cancers.