58734-57-9Relevant articles and documents
SELECTIVE NON-CYCLIC NUCLEOTIDE ACTIVATORS FOR THE CAMP SENSOR EPAC1
-
Paragraph 00174-00176; 00198; 00279, (2021/09/26)
The invention relates generally to novel EPAC1 activators, such as Formula (I) and (II) and the preparation thereof as well as the use of EPAC1 activators disclosed herein as to selectively activate EPAC1 in cells.
Synthesis and Biochemical Evaluation of Noncyclic Nucleotide Exchange Proteins Directly Activated by cAMP 1 (EPAC1) Regulators
Wang, Pingyuan,Luchowska-Stańska, Urszula,Van Basten, Boy,Chen, Haiying,Liu, Zhiqing,Wiejak, Jolanta,Whelan, Padraic,Morgan, David,Lochhead, Emma,Barker, Graeme,Rehmann, Holger,Yarwood, Stephen J.,Zhou, Jia
, p. 5159 - 5184 (2020/06/03)
Exchange proteins directly activated by cAMP (EPAC) play a central role in various biological functions, and activation of the EPAC1 protein has shown potential benefits for the treatment of various human diseases. Herein, we report the synthesis and biochemical evaluation of a series of noncyclic nucleotide EPAC1 activators. Several potent EPAC1 binders were identified including 25g, 25q, 25n, 25u, 25e, and 25f, which promote EPAC1 guanine nucleotide exchange factor activity in vitro. These agonists can also activate EPAC1 protein in cells, where they exhibit excellent selectivity toward EPAC over protein kinase A and G protein-coupled receptors. Moreover, 25e, 25f, 25n, and 25u exhibited improved selectivity toward activation of EPAC1 over EPAC2 in cells. Of these, 25u was found to robustly inhibit IL-6-activated signal transducer and activator of transcription 3 (STAT3) and subsequent induction of the pro-inflammatory vascular cell adhesion molecule 1 (VCAM1) cell-adhesion protein. These novel EPAC1 activators may therefore act as useful pharmacological tools for elucidation of EPAC function and promising drug leads for the treatment of relevant human diseases.
Metal-free construction of primary sulfonamides through three diverse salts
Wang, Ming,Fan, Qiaoling,Jiang, Xuefeng
supporting information, p. 5469 - 5473 (2019/01/03)
In this report, the first metal-free construction of primary sulfonamides through a direct three-component reaction of sodium metabisulfite, sodium azide and aryldiazonium has been established. Readily available inorganic Na2S2O5 and NaN3 were applied as the sulfur dioxide surrogate and nitrogen source respectively. The widely used sulfonamide drugs Celecoxib and Sulpiride, which possess multiple heteroatoms and active hydrogen containing functional groups, are efficiently installed with -SO2NH2 groups at a late stage. Control experiments and kinetic studies demonstrated that aryl radicals, sulfonyl radicals and conjugated phosphine imine radicals are involved in this transformation.