5330-71-2Relevant articles and documents
CASPASE INHIBITOR AND PHARMACEUTICAL COMPOSITION, USE AND THERAPEUTIC METHOD THEREOF
-
Paragraph 0204; 0205, (2019/04/05)
Disclosed are a class of compounds as a caspase inhibitor, and in particular the compound as shown in formula (I) or a pharmaceutically acceptable salt thereof, and the use of the compound in treating caspase-related diseases.
Synthesis and Evaluation of Hydrogen Peroxide Sensitive Prodrugs of Methotrexate and Aminopterin for the Treatment of Rheumatoid Arthritis
Peiró Cadahía, Jorge,Bondebjerg, Jon,Hansen, Christian A.,Previtali, Viola,Hansen, Anders E.,Andresen, Thomas L.,Clausen, Mads H.
, p. 3503 - 3515 (2018/05/01)
A series of novel hydrogen peroxide sensitive prodrugs of methotrexate (MTX) and aminopterin (AMT) were synthesized and evaluated for therapeutic efficacy in mice with collagen induced arthritis (CIA) as a model of chronic rheumatoid arthritis (RA). The prodrug strategy selected is based on ROS-labile 4-methylphenylboronic acid promoieties linked to the drugs via a carbamate linkage or a direct C-N bond. Activation under pathophysiological concentrations of H2O2 proved to be effective, and prodrug candidates were selected in agreement with relevant in vitro physicochemical and pharmacokinetic assays. Selected candidates showed moderate to good solubility, high chemical and enzymatic stability, and therapeutic efficacy comparable to the parent drugs in the CIA model. Importantly, the prodrugs displayed the expected safer toxicity profile and increased therapeutic window compared to MTX and AMT while maintaining a comparable therapeutic efficacy, which is highly encouraging for future use in RA patients.
Highly potent and selective fluorescent antagonists of the human adenosine A3 receptor based on the 1,2,4-triazolo[4,3-a]quinoxalin-1-one scaffold
Vernall, Andrea J.,Stoddart, Leigh A.,Briddon, Stephen J.,Hill, Stephen J.,Kellam, Barrie
experimental part, p. 1771 - 1782 (2012/05/04)
The adenosine-A3 receptor (A3AR) is a G protein-coupled receptor that shows promise as a therapeutic target for cancer, glaucoma, and various autoimmune inflammatory disorders, and as such, there is a need for molecular probes to study this receptor. Here, we report a series of fluorescent ligands containing different linkers and fluorophores based around a 1,2,4-triazolo[4,3-a]quinoxalin-1-one antagonist. One of these conjugates (19) displayed high affinity for the A3AR (pKD = 9.36 ± 0.12) and is >650-fold selective over other adenosine receptor subtypes. Confocal microscopy revealed clear, displaceable membrane labeling of CHO-A 3 cells with 19, with no detectable labeling of CHO-A1 cells under identical conditions. This fluorescent ligand was also able to specifically label the A3AR in HEK293T cells containing a mixed adenosine receptor population. The subtype specificity, along with its excellent imaging properties, make 19 an ideal tool for studying A3AR distribution and organization, particularly in the presence of other adenosine receptor subtypes.