Oxabenzomorphane: Synthese, Reaktionen 和 ZNS-Wirkung von 2,6-Methano-1-benzoxocinen
摘要:
Die basicch katalysierte Umsetzung von Salicylidenaceton (3a) mit Acetessigester (2a) führt zum Tetrahydro-methanobenzoxocinon 4a。Mit Derivaten der Ausgangsprodukte (3b-f und 2b-f) entstehen die Tricyclen 4b-g bzw。8a-d, daneben können die Cyclohexenone 7a-f isoliert werden sowie die Oxaphenanthrene 9 bzw。10a-d。Die Amine 12a-d, durch reduktive Aminierung von 4a dargestellt, wirken im Tierversuch erregend
Tricyclic cyanoguanidines: synthesis, site of action and insecticidal activity of a novel class of reversible acetylcholinesterase inhibitors
摘要:
Bridged-tricyclic cyanoguanidines 1 were found to be active as insecticides. The preparation and structure-activity relationships of oxacyclic (X=O) and carbocyclic (X=CH2) analogues of 1 is described. Compounds 1 were found to inhibit acetylcholinesterase with IC50 values comparable to the organophosphate Paraoxon. Unlike organophosphates. cyanoguanidines 1 were shown to reversibly bind acetylcholinesterase. This mode of action is shared by the structurally-related natural product Huperzine A. (C) 2002 Elsevier Science Ltd. All rights reserved.
phenol as a directing group, high regioselectivity, good substrate scope, mild reaction conditions, and high efficiency. To the best of our knowledge, this is the first example of a regioselective C−H alkenylation of unprotected phenols utilizing phenolic hydroxyl group as a directing group. The alkenylation of unprotected tyrosine and intramolecular cyclization are also successfully carried out under
PESTICIDAL FLAVOBACTERIUM STRAIN AND BIOACTIVE COMPOSITIONS METABOLITES AND USES
申请人:Marrone Bio Innovations, Inc.
公开号:US20150031534A1
公开(公告)日:2015-01-29
Provided is a pesticidal
Flavobacterium
strain and bioactive compositions and metabolites derived therefrom as well as their methods of use for controlling pests.