Recommanded Product: Picolinoyl chloride hydrochloride. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Picolinoyl chloride hydrochloride, is researched, Molecular C6H5Cl2NO, CAS is 39901-94-5, about Discovery and Development of Metal-Catalyzed Coupling Reactions in the Synthesis of Dasabuvir, an HCV-Polymerase Inhibitor. Author is Barnes, David M.; Shekhar, Shashank; Dunn, Travis B.; Barkalow, Jufang H.; Chan, Vincent S.; Franczyk, Thaddeus S.; Haight, Anthony R.; Hengeveld, John E.; Kolaczkowski, Lawrence; Kotecki, Brian J.; Liang, Guangxin; Marek, James C.; McLaughlin, Maureen A.; Montavon, Donna K.; Napier, James J..
Dasabuvir is an HCV polymerase inhibitor which has been developed as a part of a three-component direct-acting antiviral combination therapy. During the course of the development of the synthetic route, two novel coupling reactions were developed. First, the copper-catalyzed coupling of uracil with aryl iodides, employing picolinamide derivative I, as the ligand, was discovered. Later, the palladium-catalyzed sulfonamidation of aryl nonaflate II, was developed, promoted by electron-rich palladium complexes, including the novel phosphine ligand, VincePhos III. This made possible a convergent, highly efficient synthesis of dasabuvir that significantly reduced the mutagenic impurity burden of the process.
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