Oxidative Decarboxylation of α-Amino and α-Hydroxy Acids Using Copper(II) Bromide-Lithium tert-Butoxide
作者:Takeshi Takeda、Satoshi Yamauchi、Tooru Fujiwara
DOI:10.1055/s-1996-4267
日期:1996.5
α-Monoalkyl α-amino acids were oxidized to the corresponding alkanenitriles in good yields by treatment with copper(II) bromide-lithium tert-butoxide. The oxidation of α,α-disubstituted α-amino and α-hydroxy acids also gave the corresponding ketones.
Disclosed herein are new heterocyclic compounds of Formula IIa:
and compositions thereof, and their application as pharmaceuticals for the treatment of disease. Methods of inhibiting PAS Kinase (PASK) activity in a human or animal subject are also provided for the treatment of diseases such as diabetes mellitus.
XY–ZH systems as potential 1,3-dipoles. Part 1. Background and scope
作者:Ronald Grigg、H. Q. Nimal Gunaratne、James Kemp
DOI:10.1039/p19840000041
日期:——
XY–ZH Systems are considered in general terms and divided into four classes according to the number of constituent atoms that possess lone-pair electrons. Those systems in which the central Y atom possesses a lone pair are shown to be capable of participating in formal 1,2-H shifts generating 1,3-dipolar species. The scope of the reaction, including its possible relevance to the biochemistry of pyridoxal
X Y–ZH系统被视为通用术语,根据拥有孤对电子的组成原子的数量分为四类。中心Y原子具有孤对的那些系统显示出能够参与形成1,2-H移位的正式1,2-H移位,从而产生1,3-偶极物种。讨论了反应的范围,包括其可能与吡ido醛酶生物化学的相关性,并通过速率数据证明了一系列苯基甘氨酸和丙氨酸甲酯的芳基亚胺环加成N-苯基马来酰亚胺的速率对结构的影响。
[EN] IMIDAZOLINONE DERIVATIVES AS CGRP RECEPTOR ANTAGONISTS<br/>[FR] DÉRIVÉS D'IMIDAZOLINONE EN TANT QU'ANTAGONISTES DE RÉCEPTEURS CGRP
申请人:MERCK SHARP & DOHME
公开号:WO2010077752A1
公开(公告)日:2010-07-08
The present invention is directed to imidazolinone derivatives which are antagonists of CGRP receptors and useful in the treatment or prevention of diseases in which CGRP is involved, such as migraine. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.
Radical cyclization in heterocycle synthesis. Part 13: Sulfanyl radical addition–cyclization of oxime ethers and hydrazones connected with alkenes for synthesis of cyclic β-amino acids
combination of sulfanyl radical addition–cyclization of the oximeethers and hydrazones connected with alkenes and subsequent conversion of a phenylsulfanylmethyl group to a carboxyl group provides a novel method for the construction of the cyclic β-amino acids. Upon treatment with thiophenol in the presence of AIBN, the oximeethers and hydrazones smoothly underwent sulfanyl radical addition-cyclization