930681-24-6

Upstream product

• 609-71-2 2-hydroxy-3-carboxypyridine 
• 100-46-9 benzylamine 
• 6602-54-6 2-chloro-3-pyridinecarbonitrile 
• 49609-84-9 2-Chloronicotinoyl chloride 
• 65423-28-1 2-chloronicotinic acid benzylamine 
• 2942-59-8 2-chloronicotinic acid 

Downstream Products

• 1426959-60-5 N-benzyl-5-bromo-2-hydroxynicotinamide 
• 1426959-64-9 C₂₂H₂₂N₂O₂S 

Relevant academic research and scientific papers

Ligand Promoted meta-C-H Chlorination of Anilines and Phenols

Pd-catalyzed meta-C-H chlorination of anilines and phenols is developed using norbornene as the mediator. Heterocycles, including indole, thiophene, and indazole, are tolerated. The identification of a new pyridone-based ligand is crucial for the success of this meta-C-H chlorination reaction. Subsequent diverse transformations of the chlorinated products demonstrate the versatility of meta-C-H chlorination.

B(OCH2CF3)3-mediated direct amidation of pharmaceutically relevant building blocks in cyclopentyl methyl ether

The use of B(OCH2CF3)3 for mediating direct amidation reactions of a wide range of pharmaceutically relevant carboxylic acids and amines is described, including numerous heterocycle-containing examples. An initial screen of solvents for the direct amidation reaction suggested that cyclopentyl methyl ether, a solvent with a very good safety profile suitable for use over a wide temperature range, was an excellent replacement for the previously used solvent acetonitrile. Under these conditions amides could be prepared from 18 of the 21 carboxylic acids and 18 of the 21 amines examined. Further optimisation of one of the low yielding amidation reactions (36% yield) via a design of experiments approach enabled an 84% yield of the amide to be obtained.

Fragment-based design, synthesis, and biological evaluation of N-substituted-5-(4-isopropylthiophenol)-2-hydroxynicotinamide derivatives as novel Mcl-1 inhibitors

We have previously reported a nanomolar inhibitor of antiapoptotic Mcl-1 protein, 3-thiomorpholin-8-oxo-8H-acenaphtho [1,2-b] pyrrole-9-carbonitrile (S1). S1 plays its function by binding to the BH3 groove of Mcl-1. Basing on this spacial structural characteristic, we developed a novel class of Mcl-1 inhibitor using fragment-based drug discovery approach. By dissecting S1, we identified the compound 4 with a 2-hydroxypyridine core as the starting fragment. In the following molecular growth, we used the ligand efficiency evaluation and fit quality score to assess the fragments. A novel potent compound, N-benzyl-5-(4-isopropylthiophenol)-2-hydroxyl nicotinamide (12c), which binds Mcl-1 with an IC50 value of 54 nM was obtained. Compound 12c demonstrated a better aqueous solubility than S1.

A highly efficient copper-catalyzed method for the synthesis of 2-hydroxybenzamides in water

An efficient copper-catalyzed synthetic method for the preparation of 2-hydroxybenzamides is described for the first time from 2-chlorobenzamide substrates using copper iodide/1,10-phenanthroline and a base, potassium hydroxide, in neat water. By using this reaction, a series of 2-hydroxybenzamides with functional groups such as fluoro, chloro, iodo, methoxy, amide, and alcohol have been obtained in 33-96% yield. Other aromatic 2-chloroarylamides such as naphthalene, pyridine, and thiophene are found to be equally compatible to the reaction. It is proposed that the reaction proceed via formation of copper-amide complex, which may facilitate the hydroxylation in water. Overall, the first report on copper-catalyzed hydroxylation reaction in water and first catalytic route for the synthesis of 2-hydroxybenzamides is presented. Simple purification procedure and convenience of employing low-cost reagents in neat water make this method practical and economical for the synthesis of 2-hydroxybenzamides. Georg Thieme Verlag Stuttgart · New York.

TEREPHTHALAMATE COMPOUNDS AND COMPOSITIONS, AND THEIR USE AS HIV INTEGRASE INHIBITORS

Described herein are compounds having a terephthalamate structural feature. Also described herein, are methods of making such compounds, methods of using such compounds to modulate the activity of HIV integrase, and pharmaceutical compositions and medicaments comprising such compounds. Also described herein are methods of using such compounds, pharmaceutical compositions and medicaments to treat and/or prevent and/or inhibit and/or ameliorate the pathology and/or symptomology of AIDS or infection with HIV.