Synthesis of 1,3,4-Oxadiazoles from Carboxylic Hydrazides and of 1,2-Oxazin-6-ones from α-(Hydroxyimino)carboxylic Esters with Keteneylidene Triphenylphosphorane
作者:Jonas Löffler、Rainer Schobert
DOI:10.1055/s-1997-766
日期:1997.3
In a one-pot procedure 1,3,4-oxadiazoles 8 are prepared from carboxylic hydrazides 2 and keteneylidene triphenylphosphorane 1 via an untypical intermolecular Wittig olefination of a carbamate type carbonyl group. Under similar conditions, reaction of 1 and α-(hydroxyimino) carboxylic esters 9 furnishes 1,2-oxazin-6-ones 11 by a different process including an intramolecular olefination step.
[EN] QUINAZOLINONE COMPOUNDS AND DERIVATIVES THEREOF<br/>[FR] COMPOSÉS QUINAZOLINONES ET LEURS DÉRIVÉS
申请人:AMGEN INC
公开号:WO2014036022A1
公开(公告)日:2014-03-06
Compounds of Formula I are useful inhibitors of tankyrase. Compounds of Formula I have the following structure: where the definitions of the variables are provided herein.
The synthesis of bis(1,3,4-oxadiazol-2-yl-phenylmethyl) sulfides and other related 1,3,4-oxadiazoles from 1,1′-diphenylthiodiacetic acid dihydrazide and triethyl orthoesters
作者:Agnieszka Kudelko
DOI:10.1016/j.tet.2011.09.018
日期:2011.11
1′-diphenylthiodiacetic acid dihydrazide and triethyl orthoesters in the presence of catalytic amount of glacial acetic acid resulted in the formation of three heterocyclic products: the appropriate bis(1,3,4-oxadiazol-2-yl-phenylmethyl) sulfides, 2-benzyl-1,3,4-oxadiazoles and 2-benzoyl-1,3,4-oxadiazoles. The presence of the latter two compounds is connected with carbon–sulfur fission in the molecule
[EN] SMALL MOLECULE INHIBITORS OF THE ANDROGEN RECEPTOR ACTIVITY AND/OR EXPRESSION AND USES THEREOF<br/>[FR] INHIBITEURS À PETITES MOLÉCULES DE L'ACTIVITÉ ET/OU DE L'EXPRESSION DU RÉCEPTEUR DES ANDROGÈNES ET UTILISATIONS CORRESPONDANTES
申请人:UNIV ARIZONA
公开号:WO2020123670A1
公开(公告)日:2020-06-18
This invention is in the field of medicinal chemistry. In particular, the invention relates to a new class of small-molecules having a piperazine (or similar) structure which function as antagonists of androgen receptor activity, and their use as therapeutics for the treatment of cancer (e.g., castration-resistant prostate cancer) and other conditions characterized with androgen receptor activity and/or androgen receptor expression.
[EN] NICOTINAMIDE DERIVATIVES<br/>[FR] DÉRIVÉS DE NICOTINAMIDE
申请人:PFIZER LTD
公开号:WO2009153721A1
公开(公告)日:2009-12-23
The present invention relates to compounds of the formula (I) and pharmaceutically acceptable salts and solvates thereof, wherein the substituents are defined herein, to compositions containing such compounds and to the uses of such compounds for the treatment of allergic and respiratory conditions.