[EN] PROCESS FOR PREPARATION OF BRIVARACETAM INTERMEDIATES AND USE THEREOF [FR] PROCÉDÉ DE PRÉPARATION D'INTERMÉDIAIRES DE BRIVARACÉTAM ET LEUR UTILISATION
Pheromones and analogs from Neozeleboria wasps and the orchids that seduce them: a versatile synthesis of 2,5-dialkylated 1,3-cyclohexanediones
摘要:
Chiloglottone, a wasp pheromone and attractant of sexually deceptive Chiloglottis orchids, and several structural analogs were synthesized. The synthetic approach is facile, high yielding and versatile, enabling rapid divergence to generate dialkylated analogs of chiloglottone. The key transformation was an organocadmium-mediated desymmetrization of glutaric anhydride derivatives. This library of synthetic 2,5-dialkylated 1,3-cyclohexanediones may assist in future identification of natural products in further species. (C) 2008 Elsevier Ltd. All rights reserved.
Glutarimide derivatives of formula (I) :
and glutaric acid amide derivatives of formula (VII) :
have a herbicidal effect
公式(I)的戊二酰亚胺衍生物和公式(VII)的戊二酸酰胺衍生物具有除草作用。
[EN] METHOD FOR PREPARING BRIVARACETAM AND INTERMEDIATES THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE BRIVARACÉTAM ET SES INTERMÉDIAIRES<br/>[ZH] 布瓦西坦的制备方法及其中间体
Hydrogel implants with varying degrees of crosslinking
申请人:Tyco Healthcare Group LP
公开号:EP2389894A2
公开(公告)日:2011-11-30
The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
Hydrogel implant with varying degrees of crosslinking
申请人:Tyco Healthcare Group LP
公开号:EP2389925A2
公开(公告)日:2011-11-30
The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.