Inhibition of secretory phospholipase A2. 2-Synthesis and structure–activity relationship studies of 4,5-dihydro-3-(4-tetradecyloxybenzyl)-1,2,4-4H-oxadiazol-5-one (PMS1062) derivatives specific for group II enzyme
摘要:
We have recently reported the discovery of a series of specific inhibitors of human group IIA phospholipase A(2) (hGIIA PLA(2)) to display promising in vitro and in vivo properties. Here we describe the influence of different structural modifications on the specificity and potency against hGIIA PLA(2) versus porcine group IB PLA(2). The SAR results, as well as the log P and pK(a) values of oxadiazolone determined in this work, provide important information towards the comprehension of the mode of action of this kind of compounds. (c) 2005 Elsevier Ltd. All rights reserved.
Time temperature indicators are disclosed which comprise at least one carrier material and one aggregachromic indicator dye and which respond to the combined effects of temperature and time with an easily measurable, time-temperature dependent, irreversible, color change. The invention also discloses to methods to produce such time-temperature indicators and materials therefore. Also, the devices disclose methods for determining the time/temperature history.
Farbphotographisches Aufzeichnungsmaterial mit nicht diffundierenden Elektronendonor-Vorläuferverbindungen
申请人:Agfa-Gevaert AG
公开号:EP0034749A2
公开(公告)日:1981-09-02
5-oder6-gliedrigeα-Lactone von Phenolen,die in2-ode 4-Stellung zur lactonisierten phenolischen Hydroxylgruppe eine Hydroxyl- oder Aminogruppe und im Lactonring einen elektronenanziehenden Substituenten tragen, so daß der Lactonring bei pH-Werten zwischen 10 und 13 leicht aufgespalten wird unter Bildung einer ED-Verbindung (ElektronendonorVerbindung) mit einem Retoxpotential von weniger als 0,255 V gemessen bei pH 0 gegen eine Normal-Kalomelektrode, sind wertvolle ED-Vorläuferverbindungen für nicht diffundierende reduzierbare farbgebende Verbindungen.
Inhibition of secretory phospholipase A2. 2-Synthesis and structure–activity relationship studies of 4,5-dihydro-3-(4-tetradecyloxybenzyl)-1,2,4-4H-oxadiazol-5-one (PMS1062) derivatives specific for group II enzyme
We have recently reported the discovery of a series of specific inhibitors of human group IIA phospholipase A(2) (hGIIA PLA(2)) to display promising in vitro and in vivo properties. Here we describe the influence of different structural modifications on the specificity and potency against hGIIA PLA(2) versus porcine group IB PLA(2). The SAR results, as well as the log P and pK(a) values of oxadiazolone determined in this work, provide important information towards the comprehension of the mode of action of this kind of compounds. (c) 2005 Elsevier Ltd. All rights reserved.
Mesogenic D–A fluorophores based on cyanovinyl and benzothiadiazole