Specific Inhibitors of Puromycin-Sensitive Aminopeptidase with a 3-(Halogenated Phenyl)-2,4(1H,3H)-quinazolinedione Skeleton
摘要:
Specific puromycin-sensitive aminopeptidase (PSA) inhibitors with a 3-(halogenated phenyl)-2,4(1H,3H)-quinazolinedione skeleton were prepared and their structure-activity relationships were investigated. The nature (F, Cl or Br), number and position(s) of the halogen atom(s) introduced into the 3-phenyl group were concluded to be critical determinants of the inhibitory activity.
[EN] INHIBITORS OF CYTOKININ OXIDASE DERIVED FROM 2-(3-PHENYLUREIDO)BENZAMIDE, USE THEREOF AND PREPARATIONS CONTAINING THESE DERIVATIVES<br/>[FR] INHIBITEURS DE LA CYTOKININE OXYDASE DÉRIVÉS DE 2-(3-PHÉNYLURÉIDO) BENZAMIDE, LEUR UTILISATION ET PRÉPARATIONS CONTENANT CES DÉRIVÉS
申请人:UNIV PALACKEHO
公开号:WO2021185390A1
公开(公告)日:2021-09-23
The present invention relates to substituted 2-(3-phenylureido)benzamide derivatives of the general formula (I), wherein R1 is hydrogen, amino group, (C1 to C5)alkyl, (C2 to C5)alkenyl or (C2 to C5)alkynyl, optionally substituted with hydroxy or amino group, R2 is hydrogen, halogen, methoxy group or halogenated methoxy group and R3 and R4 are selected from the group consisting of hydrogen, halogen, methoxy group or trifluoromethoxy group. The compounds of general formula (I) inhibit one of the key plant enzymes cytokinin oxidase/dehydrogenase (CKX). The invention further relates to the use of these compounds in agriculture as biostimulators of plant growth, development and yield, and to increase their resistance to stress and to delay the senescence of plants. The present invention further relates to preparations for the treatment of plants containing these derivatives.
the presence of an L-tert-leucine-derived urea–ammonium salt as phase-transfer catalyst, a highly enantioselective alkylation of 5H-oxazol-4-ones with various benzyl bromides and allylic bromides has been developed to furnish catalytic asymmetric synthesis of biologically important dialkylated α-hydroxy carboxylic acids with a broad scope. This is the first example of an L-amino acid-derived urea–ammonium
Synthese von makromolekeln einheitlicher größe. II. Mitt. Synthese neuer diol-oligo-urethane nach dem duplikationsverfahren.
作者:Von W. Kern、W. Thoma
DOI:10.1002/macp.1955.020160113
日期:——
AbstractNeue Diol‐di‐ und Diol‐hexa‐urethane werden synthetisiert. Als Komponenten dienen aromatische Diisocyanate vom Arylen‐, Diarylen‐ und Naphthylentyp und aliphatische Diisocyanate; als Diole werden Oligo‐methylendiole, wie 1,4‐Butandiol, und Diole mit Heteroatomen, wie Diglykol, N‐Alkyldiäthanolamine u. a. angewandt. Es werden besser lösliche Oligo‐urethane erhalten, die zur Durchführung des Duplikationsverfahrens geeingeter sind. Es werden mehrere neue Diisocyanate hergestellt. Zur Charakterisierung der Diol‐oligo‐urethane werden bromsubstituierte Phenylisocyanate angewandt.
Discovery of a new class of p38 kinase inhibitors
作者:Jacques Dumas、Robert Sibley、Bernd Riedl、Mary Katherine Monahan、Wendy Lee、Timothy B Lowinger、Anikó M Redman、Jeffrey S Johnson、Jill Kingery-Wood、William J Scott、Roger A Smith、Mark Bobko、Robert Schoenleber、Gerald E Ranges、Timothy J Housley、Ajay Bhargava、Scott M Wilhelm、Alka Shrikhande
DOI:10.1016/s0960-894x(00)00270-5
日期:2000.9
The MAP kinase p38 has been implicated in cytokine signaling, and its inhibitors are potentially useful for the treatment of arthritis and osteoporosis. Novel small-molecule inhibitors of p38 kinase were derived from a combinatorial chemistry effort and exhibit activity in the nanomolar range. Very steep structure-activity relationships are observed within this class. (C) 2000 Elsevier Science Ltd. All rights reserved.
Spiro-Derivate von 3-(3,5-Dihalogenphenyl)-oxazolidin-2,4-dionen, Verfahren zu ihrer Herstellung sowie ihre Verwendung als Fungizide