55349-31-0Relevant academic research and scientific papers
A2B Adenosine Receptor Antagonists with Picomolar Potency
Jiang, Jie,Seel, Catharina Julia,Temirak, Ahmed,Namasivayam, Vigneshwaran,Arridu, Antonella,Schabikowski, Jakub,Baqi, Younis,Hinz, Sonja,Hockemeyer, J?rg,Müller, Christa E.
supporting information, p. 4032 - 4055 (2019/05/06)
The A2B adenosine receptor (A2BAR) was proposed as a novel target for the (immuno)therapy of cancer since A2BAR blockade results in antiproliferative, antiangiogenic, antimetastatic, and immunostimulatory effects. In this study, we explored the structure-activity relationships of xanthin-8-yl-benzenesulfonamides mainly by introducing a variety of linkers and substituents attached to the sulfonamide residue. A new, convergent strategy was established, which facilitated the synthesis of the target compounds. Many of the new compounds exhibited subnanomolar affinity for the A2BAR combined with high selectivity. Functional groups were introduced, which will allow the attachment of dyes and other reporter groups. 8-(4-((4-(4-Bromophenyl)piperazin-1-yl)sulfonyl)phenyl)-1-propylxanthine (34, PSB-1901) was the most potent A2B-antagonist (Ki 0.0835 nM, KB 0.0598 nM, human A2BAR) with >10 000-fold selectivity versus all other AR subtypes. It was similarly potent and selective at the mouse A2BAR, making it a promising tool for preclinical studies. Computational studies predicted halogen bonding to contribute to the outstanding potency of 34.
PHENYLPYRIDINE CARBONYL PIPERAZINE DERIVATIVE
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Page 14, (2008/06/13)
The present invention relates to a compound which is represented by the following general formula and has type 4 phosphodiesterase inhibitory action, and uses and an intermediate compound thereof. (whereinR1, R2: hydrogen, a halogen, a lower alkyl, a lower alkoxy, or the like,R3, R4: hydrogen, a (substituted) lower alkyl, a halogen, or the like,R5: hydrogen, a lower alkyl, a lower alkoxycarbonyl, or the like, andn: 0 or 1).
IMIDAZO[1,2-A]PYRIDINES FOR THE TREATMENT OF CNS AND CARDIAC DISEASES
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, (2008/06/13)
The present invention relates to imidazo[1,2-a]pyridine compounds of formula (1) STR1 which are dopamine D-4 antagonists and useful as anti-psychotic agents.
