提出了一种有效的反应级联反应,该反应级联反应提供了一系列带有膦酸酯或氧化膦部分的吡咯并[1,2- a ]喹啉。该序列利用策略性的[2,3]-σ重排,然后通过相邻的吡咯环捕获所得的丙二烯,将炔丙醇原位转化为瞬时的丙二烯。此外,最初的小规模分批工艺已成功转化为连续流工艺,可有效制备多克级选定的吡咯并[1,2- a ]喹啉,而无需担心由于反应固有的放热曲线而引起的安全隐患。
[EN] PYRAZOLOQUINOLINONE DERIVATIVES, PREPARATION THEREOF AND THERAPEUTIC USE THEREOF<br/>[FR] DÉRIVÉS DE PYRAZOLOQUINOLINONE, LEUR PRÉPARATION ET LEUR UTILISATION THÉRAPEUTIQUE
申请人:SANOFI SA
公开号:WO2013045400A1
公开(公告)日:2013-04-04
The invention relates to compounds corresponding to formula (I), in which R1, R2 and R3 are as defined in Claim 1, and also to the process for preparing them and to their therapeutic use.
PYRAZOLOQUINOLINONE DERIVATIVES, PREPARATION THEREOF AND THERAPEUTIC USE THEREOF
申请人:BENAZET ALEXANDRE
公开号:US20130079337A1
公开(公告)日:2013-03-28
The invention relates to compounds corresponding to formula (I)
in which R1, R2 and R3 are as defined in Claim
1
, and also to the process for preparing them and to their therapeutic use.
Process for the preparation of an indole derivative
申请人:F. Hoffmann-La Roche AG
公开号:EP2011783A1
公开(公告)日:2009-01-07
A process for the preparation of indole derivatives of formula (I):
which are useful as intermediates in the preparation of i.a. pharmaceutically active compounds.
Domino Suzuki coupling and condensation reaction: an efficient strategy towards synthesis of phenanthridines
作者:Munmun Ghosh、Atiur Ahmed、Raju Singha、Jayanta K. Ray
DOI:10.1016/j.tetlet.2014.11.092
日期:2015.1
A short and convenient hetero-annulation protocol has been developed for the synthesis of substituted phenanthridines via domino Suzuki coupling and condensation between N-(2-iodo-aryl)-formamide derivatives and 2-formylphenylboronic acid in the presence of Pd(OAc)2, Cs2CO3 and PPh3 as catalytic system in dry DMF at 85–90 °C for 6–7 h. The intermediate after Suzuki coupling and deprotection of nitrogen
已经开发了一种短而方便的异环合成方案,用于在Pd(OAc)2存在下通过多米诺Suzuki偶联和N-(2-碘-芳基)-甲酰胺衍生物与2-甲酰基苯基硼酸之间的缩合合成取代的菲啶。,Cs 2 CO 3和PPh 3作为干燥DMF在85–90°C下反应6–7 h的催化体系。在相同的催化系统下,铃木偶联和氮脱保护后的中间体,在立即缩合和脱水后,便以高收率提供了相应的菲啶。