Practical and Regioselective Synthesis of C-4-Alkylated Pyridines
作者:Jin Choi、Gabriele Laudadio、Edouard Godineau、Phil S. Baran
DOI:10.1021/jacs.1c05278
日期:2021.8.11
The direct position-selective C-4 alkylation of pyridines has been a long-standing challenge in heterocyclic chemistry, particularly from pyridine itself. Historically this has been addressed using prefunctionalized materials to avoid overalkylation and mixtures of regioisomers. This study reports the invention of a simple maleate-derived blocking group for pyridines that enables exquisite control
Discovery and preclinical development of AR453588 as an anti-diabetic glucokinase activator
作者:Ronald J. Hinklin、Brian R. Baer、Steven A. Boyd、Mark D. Chicarelli、Kevin R. Condroski、Walter E. DeWolf、John Fischer、Michele Frank、Gary P. Hingorani、Patrice A. Lee、Nickolas A. Neitzel、Scott A. Pratt、Ajay Singh、Francis X. Sullivan、Timothy Turner、Walter C. Voegtli、Eli M. Wallace、Lance Williams、Thomas D. Aicher
DOI:10.1016/j.bmc.2019.115232
日期:2020.1
Glucose flux through glucokinase (GK) controls insulin release from the pancreas in response to high levels of glucose. Flux through GK is also responsible for reducing hepatic glucose output. Since many individuals with type 2 diabetes appear to have an inadequacy or defect in one or both of these processes, identifying compounds that can activate GK could provide a therapeutic benefit. Herein we report the further structure activity studies of a novel series of glucokinase activators (GKA). These studies led to the identification of pyridine 7 2 as a potent GKA that lowered post-prandial glucose in normal C57BL/6J mice, and after 14d dosing in ob/ob mice.
US20140256756A1
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A Bifunctional Reagent Designed for the Mild, Nucleophilic Functionalization of Pyridines
作者:Patrick S. Fier
DOI:10.1021/jacs.7b05414
日期:2017.7.19
the direct functionalization of pyridines. These reactions occur under mild conditions and exhibit broad functional group tolerance, enabling the late-stage functionalization of drug-like molecules. The reagent can be easily prepared on large scale from inexpensive reagents, and reacts in the title reaction with acetonitrile, sodiumchloride, and sodium methanesulfonate as the sole byproducts. Although