1,2,4-Triazolo[4,3-a]quinoxaline-1,4-diones as antiallergic agents
摘要:
A series of new 1,4-dihydro-1,2,4-triazolo[4,3-]quinoxaline-1,4-diones has been prepared. These compounds were tested as inhibitors of antigen-induced release of histamine (AIR) in vitro from rat peritoneal mast cells (RMC) and as inhibitors of IgE-mediated rat passive cutaneous anaphylaxis (PCA). Most of this new class of antiallergic agents showed good activity in the RMC and PCA tests. The most potent compound, 2-acetyl-7-chloro-5-n-propyl-1,2,4-triazolo[4,3-a]quinoxaline-1,4-dione (1x), with an I50 value of 0.1 microM, is 30 times more potent than disodium cromoglycate (DSCG) in the RMC assay.
[EN] VASOPRESSIN RECEPTOR ANTAGONISTS AND PRODUCTS AND METHODS RELATED THERETO<br/>[FR] ANTAGONISTES DU RÉCEPTEUR DE LA VASOPRESSINE, PRODUITS ET PROCÉDÉS ASSOCIÉS
申请人:BLACKTHORN THERAPEUTICS INC
公开号:WO2019050988A1
公开(公告)日:2019-03-14
Compounds are provided that antagonize vasopressin receptors, particularly the V1a receptor products containing such compounds, as well as to methods of their use and synthesis. Such compounds have the structure of Formula (I), or a pharmaceutically acceptable isomer, racemate, hydrate, solvate, isotope, or salt thereof: (I) wherein Q1, Q2, Q3, R2a, R2b, R3 and X are as defined herein.
Bicyclic Benzimidazole Compounds and Their Use as Metabotropic Glutamate Receptor Potentiators
申请人:Egle Ian
公开号:US20090192169A1
公开(公告)日:2009-07-30
Compounds of Formula I:
wherein A, B, D, L, R
1
, R
2
, R
3
, R
4
, m, and n are as defined for Formula I in the description. The invention also relates to processes for the preparation of the compounds and to new intermediates employed in the preparation, pharmaceutical compositions containing the compounds, and to the use of the compounds in therapy.
Regioselective Radical Arene Amination for the Concise Synthesis of <i>ortho</i>-Phenylenediamines
作者:James E. Gillespie、Charlotte Morrill、Robert J. Phipps
DOI:10.1021/jacs.1c05531
日期:2021.6.30
relevant diazoles. Our method can deliver both free amines and monoalkyl amines allowing access to unsymmetrical, selectively monoalkylated benzimidazoles and benzotriazoles. As well as providing concise access to valuable ortho-phenylenediamines, this work demonstrates the potential for utilizing noncovalent interactions to control positional selectivity in radical reactions.
Identification of potent farnesoid X receptor (FXR) antagonist showing favorable PK profile and distribution toward target tissues: Comprehensive understanding of structure-activity relationship of FXR antagonists
pharmacokinetic profiles by oral administration and its tissue distribution toward target tissues (liver and ileum) in rats while preserving the in vitro activity of 12 against FXR. Thus, 30 should be a candidate compound to investigate the effects of inhibiting FXR activity while simultaneously improving the outcome of nonalcoholic fattyliverdisease, type 2 diabetes and obesity.
We describe here a novel chemotype with substituted benzimidazole scaffold for nonsteroidal farnesoid X receptor (FXR) antagonists starting from the identification of a screening hit, BB-4. Structure diversity in four regions A-D of BB-4 or 1 is discussed. In particular, regions A and C had an effect on an antagonism against FXR as demonstrated by the derivatives represented by 7 and 15, respectively