Studies on the insecticidal activities of some newN-benzoyl-N′-arylureas
摘要:
AbstractThis paper reports the synthesis and the insecticidal activities of some N‐benzoyl‐N'‐arylureas 4‐arylsubstituted with alkylated or halogenated aroyl moieties. The compounds, tested against some representative insect species, displayed very high activity against Aedes aegypti, especially the halosubstituted derivatives. None of the newly synthesized compounds showed genotoxic activity in the Bacillus subtilis rec‐assay and in the Salmonella‐microsome test.
Studies on the insecticidal activities of some newN-benzoyl-N′-arylureas
摘要:
AbstractThis paper reports the synthesis and the insecticidal activities of some N‐benzoyl‐N'‐arylureas 4‐arylsubstituted with alkylated or halogenated aroyl moieties. The compounds, tested against some representative insect species, displayed very high activity against Aedes aegypti, especially the halosubstituted derivatives. None of the newly synthesized compounds showed genotoxic activity in the Bacillus subtilis rec‐assay and in the Salmonella‐microsome test.
Synthesis and Evaluation of Benzophenone Oximes Derivatized with Sydnone as Inhibitors of Secretory Phospholipase A2 with Anti-inflammatory Activity
作者:Ravindra Ramappa Kamble、Sudha Sathyanarayanrao Belgur、Ravindranath Aladkatti、Imthiyaz Ahmed Khazi
DOI:10.1248/cpb.57.16
日期:——
A series of benzophenone oximes appended with sydnone (3a—h) bearing different substituents on aroyl moiety were synthesized to evaluate in vivo and in vitro for their inhibitory activity against purified phospholipase A2 (PLA2) enzymes from snake venom and human inflammatory pleural and ascites fluid. In vivo and in vitro inhibition studies were carried out against PLA2 with respect to the modification of the pharmacophore (substituent) to analyze the specificity for PLA2. The substituent at the aroyl ring was responsible for enhancing the inhibition towards PLA2 enzymes. Most of the newly synthesized compounds inhibit the purified PLA2 enzyme, and the inhibition was more in hydrophobic and aromatic substituents and less when no such substituents were present. The inhibitory effect of the compounds appeared to be due to the direct interaction of compounds with the enzyme. Inhibition is substrate dependent, and the inhibition competes with the substrate for the same binding site of the enzyme. The most active interacting compound 3h from in vitro inhibition of PLA2 activity showed similar potency in the in vivo neutralization of PLA2 induced mouse paw edema and hemolytic activity. Thus, the in vitro inhibition correlated well with the in vivo inhibition and hence the reported derivatives are therapeutically important anti-inflammatory drugs.
Verfahren zur Herstellung von gegebenenfalls zelligen Polyurethan-Polyharnstoff-Formkörpern
申请人:BASF Aktiengesellschaft
公开号:EP0109624A2
公开(公告)日:1984-05-30
Die Erfindung betrifft ein Einstufen-Verfahren zur Herstellung von zelligen oder vorzugsweise kompakten Polyurethan-Polyharnstoff-Formkörpern, vorzugsweise mit Hilfe der Reaktionsspritzgußtechnik, durch Umsetzung von organischen Polyisocyanaten, Polyolen und gegebenenfalls substituierten Diaminoazobenzolen, vorzugsweise 4,4'- und/oder 2,4'-Diaminoazobenzolen, Diaminoazopyridinen und/oder deren Oxide in Gegenwart von Katalysatoren sowie gegebenenfalls Treibmitteln, Hilfs- und Zusatzstoffen.
Pyridonfarbstoffe, Verfahren zu ihrer Herstellung und Verwendung
申请人:CASSELLA Aktiengesellschaft
公开号:EP0302401A1
公开(公告)日:1989-02-08
Neue Pyridonfarbstoffe der allgemeinen Formel I
worin
m 2, 3 oder 4
n 1, 2, 3, 4 oder 5,
R ein geradkettiges oder verzweigtes Alkyl mit 1 bis 6 C-Atomen,
A Wasserstoff, Alkyl mit 1 bis 6 C-Atomen oder Phenyl und
B Wasserstoff, Cyan oder Aminocarbonyl
bedeuten, die in unpolaren Medien farbstarke, gelbe Färbungen mit sehr guten Echtheiten liefern.
通式 I 的新型吡啶酮染料
其中
m 2、3 或 4
n 为 1、2、3、4 或 5、
R 是具有 1 至 6 个碳原子的直链或支链烷基、
A 是氢、1 至 6 个碳原子的烷基或苯基,以及
B 是氢、氰基或氨基羰基
它们在非极性介质中可提供具有很好牢度特性的强黄色着色剂。