[EN] PREPARATION OF BENZOFURANS AND USE THEREOF AS SYNTHETIC INTERMEDIATES [FR] PRÉPARATION DE BENZOFURANES ET LEUR UTILISATION EN TANT QU'INTERMÉDIAIRES DE SYNTHÈSE
[EN] PREPARATION OF BENZOFURANS AND USE THEREOF AS SYNTHETIC INTERMEDIATES [FR] PRÉPARATION DE BENZOFURANES ET LEUR UTILISATION EN TANT QU'INTERMÉDIAIRES DE SYNTHÈSE
[EN] PROCESS FOR THE PREPARATION OF 3-AROYL-5-AMINOBENZOFURAN DERIVATIVES<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE DÉRIVÉS DE 3-AROYL-5-AMINOBENZOFURANNE
申请人:LEK PHARMACEUTICALS
公开号:WO2012062918A1
公开(公告)日:2012-05-18
The present invention relates to a process for the preparation of 3-aroyl -5- aminobenzofuran derivatives useful as antiarrhythmic drugs which avoids the use of nitro intermediates.
PREPARATION OF BENZOFURANS AND USE THEREOF AS SYNTHETIC INTERMEDIATES
申请人:Marom Ehud
公开号:US20130046103A1
公开(公告)日:2013-02-21
The present invention provides several synthetic methods for preparing N-(2-butylbenzofuran-5-yl)-N-(methylsulfonyl)methanesulfonamide, a compound of formula (3), an intermediate in the preparation of Dronedarone. The present invention further provides a process for preparing Dronedarone, comprising the steps of converting 2-butyl-5-bis(methanesulfon)-amidobenzofuran of formula (3) to Dronedarone, wherein the 2-butyl-5-bis(methanesulfon)-amidobenzofuran of formula (3) is prepared by the processes of the present invention.
Method for producing a heterocyclic compound and an aromatic carboxylic acid having one or more hydroxyl groups, and modified aromatic ring dioxygenase
申请人:——
公开号:US20040086983A1
公开(公告)日:2004-05-06
An objective of the present invention is to provide a method of producing hydroxylated heterocyclic compounds and hydroxylated aromatic carboxylic acids by bioengineering technique, and modified enzymes which can be used for this method. A method of producing hydroxylated heterocyclic compounds or hydroxylated aromatic carboxylic acids comprises reacting an aromatic ring dioxygenase with heterocyclic compounds or aromatic carboxylic acids to hydroxylate these compounds. An enzyme according to the present invention is an aromatic ring dioxygenase comprising an &agr;-subunit consisting of the amino acid sequence of SEQ ID NO: 2, which is modified according to the &agr;-subunit of the biphenyl dioxygenase derived from the strain
Burkholderia cepacia
LB400, a &bgr;-subunit consisting of the amino acid sequence of SEQ ID NO: 4, and a ferredoxin consisting of the amino acid sequence of SEQ ID NO: 6, and a ferredoxin reductase consisting of the amino acid sequence of SEQ ID NO: 8.
本发明的目的是提供一种通过生物工程技术生产羟基化杂环化合物和羟基化芳香族羧酸的方法,以及可用于该方法的改良酶。生产羟基化杂环化合物或羟基化芳香族羧酸的方法包括使芳香环二加氧酶与杂环化合物或芳香族羧酸反应,使这些化合物羟基化。根据本发明的一种酶是一种芳香环二加氧酶,它包括一个由 SEQ ID NO: 2 的氨基酸序列组成的&agr;-亚基,它是根据从菌株中得到的联苯二加氧酶的&agr;-亚基修饰的
伯克霍尔德氏菌
LB400,由 SEQ ID NO: 4 的氨基酸序列组成的&bgr;-亚基,由 SEQ ID NO: 6 的氨基酸序列组成的铁毒素,以及由 SEQ ID NO: 8 的氨基酸序列组成的铁毒素还原酶。
A Direct Approach to 5-Hydroxybenzofurans via a Platinum-Catalyzed Domino Rearrangement/5-<i>endo</i>-<i>dig</i> Cyclization Reaction of Quinols
作者:Ikyon Kim、Kyungsun Kim、Jungeun Choi
DOI:10.1021/jo901937u
日期:2009.11.6
A highly efficient and atom-economical construction of 2-substituted 5-hydroxybenzofurans was accomplished by employing a platinum-catalyzed domino dienone-phenol rearrangement/5-endo-dig cyclization reaction of quinols bearing alkynes.
Hydroxylation of various molecules including heterocyclic aromatics using recombinant Escherichia coli cells expressing modified biphenyl dioxygenase genes
Various molecules, in which heterocyclic aromatics are linked with phenyl or benzyl groups, were converted to their corresponding cis-dihydrodiols by recombinant Escherichia coli cells expressing modified biphenyl dioxygenase genes. Heterocyclic aromatic compounds with substituted phenyl or aliphatic moieties were also biotransformed to the hydroxylated products by the cells. Many of the converted products were novel compounds. These compounds are potentially useful as versatile starting materials for the chemical synthesis of pharmaceuticals and biologically active organic molecules. (C) 2002 Elsevier Science Ltd. All rights reserved.