(DE) Die vorliegende Anmeldung betrifft die Verwendung von Aminophthalsäurederivaten als Fungizide, sowie neue Aminophthalsäurederivate und mehrere Verfahren zu deren Herstellung.(EN) The present application concerns the use of aminophthalic acid derivatives as fungicides, and novel aminophthalic acid derivatives and several processes for their production.(FR) L'invention concerne l'utilisation de dérivés d'acide aminophtalique comme fongicides, ainsi que de nouveaux dérivés d'acide aminophtalique et plusieurs procédés permettant de les préparer.
本申请涉及氨基甲苯酸类衍生物作为防菌剂的使用,以及新型氨基甲苯酸类衍生物和制备它们的若干方法。
Preparation of 7-oxaaporphine derivatives and evaluation of their dopaminergic activity
A series of 7-oxaaporphine derivatives was prepared. The compounds were evaluated as dopaminergic agents. None of them showed either affinity for dopamine receptors or activity in vivo in the climbing behavior (mice) and turning behavior (6-hydroxydopamine-lesioned rats) tests. The lack of activity is tentatively related to the effect of the oxygen atom on the pKa of these molecules.
Preparation of 2-phenyl-3-hydroxyquinoline-4(1H)-one-5-carboxamides as potential anticancer and fluorescence agents
synthesis of 3-hydroxyquinoline-4(1H)-one derivatives bearing substituted phenyl in position 2 and variously substituted carboxamide group in position 5 is described, with use of 3-nitrophthalicanhydride, α-haloketones and primary amines as the starting materials. The synthetic approach was inspired by the preparation of analogous derivatives reported previously. However, a different strategy had to be developed
Comparable rates for cleavage of amide and ester bonds through nucleophilic attack by carboxylate anion and general acid catalysis by metal-bound water in a carboxypeptidase A model
作者:Junghun Suh、Tae Hoon Park、Byung Keun Hwang
DOI:10.1021/ja00039a027
日期:1992.6
metal-ion-catalyzed deacylation of 3 and 4 involves the nucleophilicattack of the carboxylate anion as evidenced by the accumulation and the trapping of the anhydride intermediate. Moreover, the general acid catalysis by the metal-bound water in the expulsion of the amine leaving group is discovered as a novel catalytic role for the Lewis acid catalysis by metal ions in organic reactions