1492896-47-5

Upstream product

• 1492896-32-8 methyl 6-hydroxy-2-(3-aminophenyl)-3-iodo-1-methyl-1H-indole-5-carboxylate 
• 27559-59-7 4-dimethylamino-2-hydroxy-benzoic acid methyl ester 
• 185619-66-3 (3-ethynyl-phenyl)-carbamic acid tert-butyl ester 
• 54060-30-9 3-acetylenephenylamine 
• 1492896-18-0 methyl 4-(dimethylamino)-2-hydroxy-5-((3-aminophenyl)ethynyl)benzoate 
• 1143579-89-8 methyl 4-(dimethylamino)-2-hydroxy-5-iodobenzoate 

Relevant academic research and scientific papers

Therapeutic potential of targeting the oncogenic SHP2 phosphatase

The Src homology 2 domain containing protein tyrosine phosphatase-2 (SHP2) is an oncogenic phosphatase associated with various kinds of leukemia and solid tumors. Thus, there is substantial interest in developing SHP2 inhibitors as potential anticancer and antileukemia agents. Using a structure-guided and fragment-based library approach, we identified a novel hydroxyindole carboxylic acid-based SHP2 inhibitor 11a-1, with an IC50 value of 200 nM and greater than 5-fold selectivity against 20 mammalian PTPs. Structural and modeling studies reveal that the hydroxyindole carboxylic acid anchors the inhibitor to the SHP2 active site, while interactions of the oxalamide linker and the phenylthiophene tail with residues in the β5- β6 loop contribute to 11a-1's binding potency and selectivity. Evidence suggests that 11a-1 specifically attenuates the SHP2-dependent signaling inside the cell. Moreover, 11a-1 blocks growth factor mediated Erk1/2 and Akt activation and exhibits excellent antiproliferative activity in lung cancer and breast cancer as well as leukemia cell lines.

Hydroxyindole carboxylic acid-based inhibitors for receptor-type protein tyrosine protein phosphatase beta

Aims: Protein tyrosine phosphatases (PTPs) play an important role in regulating a wide range of cellular processes. Understanding the role of PTPs within these processes has been hampered by a lack of potent and selective PTP inhibitors. Generating potent and selective probes for PTPs remains a significant challenge because of the highly conserved and positively charged PTP active site that also harbors a redox-sensitive Cys residue. Results: We describe a facile method that uses an appropriate hydroxyindole carboxylic acid to anchor the inhibitor to the PTP active site and relies on the secondary binding elements introduced through an amide-focused library to enhance binding affinity for the target PTP and to impart selectivity against off-target phosphatases. Here, we disclose a novel series of hydroxyindole carboxylic acid-based inhibitors for receptor-type tyrosine protein phosphatase beta (RPTPβ), a potential target that is implicated in blood vessel development. The representative RPTPβ inhibitor 8b-1 (L87B44) has an IC50 of 0.38aμM and at least 14-fold selectivity for RPTPβ over a large panel of PTPs. Moreover, 8b-1 also exhibits excellent cellular activity and augments growth factor signaling in HEK293, MDA-MB-468, and human umbilical vein endothelial cells. Innovation: The bicyclic salicylic acid pharmacophore-based focused library approach may provide a potential solution to overcome the bioavailability issue that has plagued the PTP drug discovery field for many years. Conclusion: A novel method is described for the development of bioavailable PTP inhibitors that utilizes bicyclic salicylic acid to anchor the inhibitors to the active site and peripheral site interactions to enhance binding affinity and selectivity. Antioxid. Redox Signal. 20, 2130-2140.

HYDROXYINDOLE CARBOXYLIC ACID BASED INHIBITORS FOR ONCOGENIC SRC HOMOLOGY-2 DOMAIN CONTAINING PROTEIN TYROSINE PHOSPHATASE-2 (SHP2)

Inhibitors of protein tyrosine phosphatases are disclosed. The inhibitors include hydroxyindole carboxylic acids having a linker and an amine scaffold that are potent inhibitors of Src homology 2-domain containing protein tyrosine phosphatase-2.