合成了两种植物抗毒素,它们是以前从被寄生疫霉疫霉感染的康乃馨中分离出来的:2-苯基-7-羟基-4 H -3,1-苯并恶嗪-4-酮(Dianthalexin)和2-(2-羟基苯甲酰基)-氨基-4-甲氧基苯甲酸(去甲酰胺A)。第一个是通过在二甲基甲酰胺中使用叔丁醇钾防止其杂环打开而获得的。还制备了五种新的其他类似化合物。
An efficient protocol for the introduction of acetoxy and hydroxy functionalities on unactivated aryl sp2 carbons of oxobenzoxazine derivatives via an ortho-C–H activation reaction using a palladium catalyst has been developed for the first time. Interestingly, this intermolecular C–H functionalization reaction takes place in a facile and simple manner with high chemo- and site selectivity.
Various calcilytic compounds and pharmaceutical compositions containing these compounds are disclosed. Calcilytic compounds are compounds capable of inhibiting calcium receptor activity. Techniques which can be used to obtain calcilytic compounds and uses of calcilyitc compounds as calcium receptor antagonists are also disclosed.
3H-Quinazolin-4-ones as a new calcilytic template for the potential treatment of osteoporosis
作者:Irina Shcherbakova、Manuel F. Balandrin、John Fox、Anjan Ghatak、William L. Heaton、Rebecca L. Conklin
DOI:10.1016/j.bmcl.2005.01.078
日期:2005.3
Structure-activity relationship studies, focused on identification of the active pharmacophore fragments in a single high-throughput screening calcilytic bit, resulted in the discovery of potent calcium receptor antagonists, substituted 3H-quinazolin-4-ones. (c) 2005 Elsevier Ltd. All rights reserved.
[EN] QUINAZOLINONE COMPOUNDS AS CALCILYTICS<br/>[FR] COMPOSES DE QUINAZOLINONE UTILISES COMME CALCILYTIQUES
申请人:NPS PHARMA INC
公开号:WO2004041755A3
公开(公告)日:2004-07-08
Meyer, Justus Liebigs Annalen der Chemie, 1907, vol. 351, p. 278