431-38-9Relevant academic research and scientific papers
BICYCLIC JAK INHIBITORS AND USES THEREOF
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Paragraph 000322, (2020/10/20)
Provided herein are compounds of Formulas (I), (II), (III), and (IV) and subformulas thereof, wherein the variables are defined herein. Also provided herein are pharmaceutical compositions comprising a compound of Formula (I), (II), (III), or (IV) and methods of using the compounds, e.g., in the treatment of immune disorders, inflammatory disorders, and cancer.
Overcoming mutagenicity and ion channel activity: Optimization of selective spleen tyrosine kinase inhibitors
Ellis, J. Michael,Altman, Michael D.,Bass, Alan,Butcher, John W.,Byford, Alan J.,Donofrio, Anthony,Galloway, Sheila,Haidle, Andrew M.,Jewell, James,Kelly, Nancy,Leccese, Erica K.,Lee, Sandra,Maddess, Matthew,Miller, J. Richard,Moy, Lily Y.,Osimboni, Ekundayo,Otte, Ryan D.,Reddy, M. Vijay,Spencer, Kerrie,Sun, Binyuan,Vincent, Stella H.,Ward, Gwendolyn J.,Woo, Grace H. C.,Yang, Chiming,Houshyar, Hani,Northrup, Alan B.
supporting information, p. 1929 - 1939 (2015/04/27)
Development of a series of highly kinome-selective spleen tyrosine kinase (Syk) inhibitors with favorable druglike properties is described. Early leads were discovered through X-ray crystallographic analysis, and a systematic survey of cores within a selected chemical space focused on ligand binding efficiency. Attenuation of hERG ion channel activity inherent within the initial chemotype was guided through modulation of physicochemical properties including log D, PSA, and pKa. PSA proved most effective for prospective compound design. Further profiling of an advanced compound revealed bacterial mutagenicity in the Ames test using TA97a Salmonella strain, and subsequent study demonstrated that this mutagenicity was pervasive throughout the series. Identification of intercalation as a likely mechanism for the mutagenicity-enabled modification of the core scaffold. Implementation of a DNA binding assay as a prescreen and models in DNA allowed resolution of the mutagenicity risk, affording molecules with favorable potency, selectivity, pharmacokinetic, and off-target profiles.
Development of Fragment-Based n-FABS NMR Screening Applied to the Membrane Enzyme FAAH
Lambruschini, Chiara,Veronesi, Marina,Romeo, Elisa,Garau, Gianpiero,Bandiera, Tiziano,Piomelli, Daniele,Scarpelli, Rita,Dalvit, Claudio
, p. 1611 - 1619 (2013/09/23)
Despite the recognized importance of membrane proteins as pharmaceutical targets, the reliable identification of fragment hits that are able to bind these proteins is still a major challenge. Among different 19F NMR spectroscopic methods, n-fluorine atoms for biochemical screening (n-FABS) is a highly sensitive technique that has been used efficiently for fragment screening, but its application for membrane enzymes has not been reported yet. Herein, we present the first successful application of n-FABS to the discovery of novel fragment hits, targeting the membrane-bound enzyme fatty acid amide hydrolase (FAAH), using a library of fluorinated fragments generated based on the different local environment of fluorine concept. The use of the recombinant fusion protein MBP-FAAH and the design of compound 11 as a suitable novel fluorinated substrate analogue allowed n-FABS screening to be efficiently performed using a very small amount of enzyme. Notably, we have identified 19 novel fragment hits that inhibit FAAH with a median effective concentration (IC50) in the low mM-μM range. To the best of our knowledge, these results represent the first application of a 19F NMR fragment-based functional assay to a membrane protein.
Design, synthesis, and evaluation of trifluoromethyl ketones as inhibitors of SARS-CoV 3CL protease
Shao, Yi-Ming,Yang, Wen-Bin,Kuo, Tun-Hsun,Tsai, Keng-Chang,Lin, Chun-Hung,Yang, An-Suei,Liang, Po-Huang,Wong, Chi-Huey
, p. 4652 - 4660 (2008/12/20)
A series of trifluoromethyl ketones as SARS-CoV 3CL protease inhibitors was developed. The inhibitors were synthesized in four steps from commercially available compounds. Three different amino acids were explored in the P1-position and in the P2-P4 positions varying amino acids and long alkyl chain were incorporated. All inhibitors were evaluated in an in vitro assay using purified enzyme and fluorogenic substrate peptide. One of the inhibitors showed a time-dependent inhibition, with a Ki value of 0.3 μM after 4 h incubation.
NOVEL BICYCLIC SULFONAMIDES FOR USE AS GLUCOCORTICOID RECEPTOR MODULATORS IN THE TREATMENT OF INFLAMMATORY DISEASES
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Page/Page column 29, (2008/06/13)
Compounds of formula (I): or a pharmaceutically acceptable salt thereof; compositions comprising them, processes for preparing them and their use in medical therapy (for example modulating the glucocorticoid receptor in a warm blooded animal).
The synthesis of fluorine-containing pterins
Dunn, Caroline,Gibson, Colin L.,Suckling, Colin J.
, p. 13017 - 13026 (2007/10/03)
The synthesis of some 7,7-difluoro-7,8-dihydropterins and pterins with fluoroalkyl substituents at the 6 or 7 positions from fluorine-containing aliphatic precursors and suitably substituted pyrimidines is described. The fluorine-containing pterins were found to be very insoluble and also stable to nucleophiles and bases in dilute aqueous solution.
