[EN] OXADIAZOLE INHIBITORS OF LEUKOTRIENE PRODUCTION<br/>[FR] COMPOSÉS OXADIAZOLE, INHIBITEURS DE LA PRODUCTION DE LEUCOTRIÈNES
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2012027322A1
公开(公告)日:2012-03-01
The present invention relates to compound of formula (I) and pharmaceutically acceptable salt thereof, wherein R1-R5 are as defined herein. The invention also relates to pharmaceutical compositions comprising these compounds, methods of using these compounds in the treatment of various diseases and disorders, processes for preparing these compounds and intermediates useful in these processes.
[EN] PYRIDINE COMPOUNDS AS INHIBITORS OF DIPEPTIDYL PEPTIDASE IV<br/>[FR] COMPOSES PYRIDINES UTILISES COMME INHIBITEURS DE DIPEPTIDYLE PEPTIDASE IV
申请人:TAKEDA PHARMACEUTICAL
公开号:WO2005042488A1
公开(公告)日:2005-05-12
A compound represented by the formula wherein R1 and R2 are the same or different and each is an optionally substituted hydrocarbon group or an optionally substituted hydroxy group; R3 is an optionally substituted aromatic group; R4 is an optionally substituted amino group; L is a divalent chain hydrocarbon group; Q is a bond or a divalent chain hydrocarbon group; and X is a hydrogen atom, a cyano group, a nitro group, an acyl group, a substituted hydroxy group, an optionally substituted thiol group, an optionally substituted amino group or an optionally substituted cyclic group; provided that when X is an ethoxycarbonyl group, then Q is a divalent chain hydrocarbon group. The compound has a peptidase inhibitory action, is useful as an agent for the prophylaxis or treatment of diabetes and the like, and is superior in efficacy, duration of action, specificity, lower toxicity and the like.
Palladium-catalysed cross double carbonylation of amines and alcohols: synthesis of oxamates
作者:Shun-Ichi Murahashi、Yo Mitsue、Kazuo Ike
DOI:10.1039/c39870000125
日期:——
Crossdoublecarbonylation of amines and alcohols in the presence of PdCl2(MeCN)2/Cul catalyst under CO and O2 at room temperature gives oxamates efficiently.
The present invention relates to new CGRP-antagonists of general formula I
wherein U, V, X, Y, R
1
, R
2
, R
3
and R
4
are defined as mentioned in the description, the tautomers thereof, the isomers thereof, the diastereomers thereof, the enantiomers thereof, the hydrates thereof, the mixtures thereof and the salts thereof as well as the hydrates of the salts, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, medicaments containing these compounds, the use thereof and processes for the preparation thereof.
Palladium-Catalyzed Double and Single Carbonylations of<i>β</i>-Amino Alcohols. Selective Synthesis of Morpholine-2,3-diones and Oxazolidin-2-ones and Applications for Synthesis of<i>α</i>-Oxo Carboxylic Acids
Catalytic crossdoublecarbonylation of secondary amines and alcohols proceeds in the presence of [PdCl2(MeCN)2] and CuI under carbon monoxide (80 atm) and oxygen (5 atm). Catalytic intramolecular doublecarbonylation of β-amino alcohols gives morpholine-2,3-diones, which are excellent protecting compounds of amino alcohols and important precursors for biologically active nitrogen compounds. In contrast
仲胺和醇的催化交叉双羰基化在一氧化碳 (80 atm) 和氧气 (5 atm) 下在 [PdCl2(MeCN)2] 和 CuI 的存在下进行。β-氨基醇的催化分子内双羰基化得到吗啉-2,3-二酮,它是氨基醇的极好保护化合物和生物活性氮化合物的重要前体。相比之下,在一氧化碳和氧气 (1.0 atm) 的混合物 (1:1) 下,β-氨基醇的催化单羰基化进行选择性地得到恶唑烷-2-酮。该反应可以通过假设一种机制来解释,该机制包括(羟乙基)氨基羰基配体的羟基对氨基甲酰基钯 (II) 配合物的 CO 配体的分子内亲核攻击,然后还原消除得到吗啉-2,3-二酮。相反,羟基对氨基甲酰基的直接亲核攻击提供了恶唑烷-2-酮。作为双音和单音的常用中间体...