Practical Synthesis of 1H-Indazole-3-carboxylic Acid and Its Derivatives
摘要:
A practical and convenient synthesis of 1H-indazole-3-carboxylic acid and its amide and ester derivatives from the corresponding derivatives of 2-nitrophenylacetic acid was described.
A straightforward and effective procedure for the preparation of 1H-indazole-3-carboxylic acid esters and amides was developed. A series of functionalized 3-iodoindazoles were subjected to Pd-catalyzed carbonylations in the presence of methanol or amines, yielding the title compounds in moderate to good yield. For the majority of examples, the reaction proceeded cleanly under mild conditions, which
Live-Cell Protein Modification by Boronate-Assisted Hydroxamic Acid Catalysis
作者:Christopher Adamson、Hidetoshi Kajino、Shigehiro A. Kawashima、Kenzo Yamatsugu、Motomu Kanai
DOI:10.1021/jacs.1c07060
日期:2021.9.22
Selective methods for introducing protein post-translational modifications (PTMs) within living cells have proven valuable for interrogating their biological function. In contrast to enzymatic methods, abiotic catalysis should offer access to diverse and new-to-nature PTMs. Herein, we report the boronate-assisted hydroxamic acid (BAHA) catalyst system, which comprises a protein ligand, a hydroxamic
INDAZOLE DERIVATIVES AS ADENOSINE MONOPHOSPHATE DEAMINASE (AMPD) INHIBITORS FOR USE IN DIABETES AND RELATED DISEASES OF METABOLIC SYNDROME
申请人:Ochs Raymond S.
公开号:US20120130078A1
公开(公告)日:2012-05-24
Herein, we describe a method for treatment of diabetes and other disorders classified as Metabolic Syndrome. The invention provides novel AMP Deaminase (AMPD) inhibitors comprising novel indazole and benzotriazole derivatives including a phosphorous containing derivative, a carboxylic acid, or an amino acid ester prodrug. The invention also provides support for a novel mechanism of action for the existing drug metformin: direct inhibition of the enzyme AMPD. The inhibition of AMPD in turn activates AMP Kinase, known to be linked to the action of metformin. The invention also makes novel use of a double inhibitor assay allowing identification of selective AMPD inhibitors over ADA inhibitors. The new inhibitors, structurally distinct from metformin, offer selectivity that may obviate side effects known for metformin itself, providing new benefits for diabetes and Metabolic Syndrome.
A practical and convenient synthesis of 1H-indazole-3-carboxylic acid and its amide and ester derivatives from the corresponding derivatives of 2-nitrophenylacetic acid was described.