The Reaction of N-Magnesium Derivatives of Pyrroles with N-Mesylchloromethylpyrroles: A Synthesis of Dipyrrylmethanes
摘要:
Attachment of an alkyl- or arylsulfonyl group at the nitrogen atom of a pyrrole reduces the aromaticity and electron availability of the system. This is confirmed by the structure of an N-tosylated chloromethylpyrrole determined by X-ray crystallography. In agreement, N-mesylated chloromethylpyrroles are handleable materials which react smoothly with N-magnesium derivatives of pyrroles to provide a novel route for synthesis of dipyrrylmethanes. Several examples of this synthesis are described, including the construction of molecules carrying deuterium at the interpyrrolic methylene group.
Rational or Statistical Routes from 1-Acyldipyrromethanes to <i>meso</i>-Substituted Porphyrins. Distinct Patterns, Multiple Pyridyl Substituents, and Amphipathic Architectures
作者:Dilek Kiper Dogutan、Marcin Ptaszek、Jonathan S. Lindsey
DOI:10.1021/jo800588n
日期:2008.8.1
New methodology is described for the synthesis of porphyrins bearing four (A4, cis-A2B2, cis-ABC2, trans-A2B2) or fewer (A, cis-AB, cis-A2, trans-A2) meso substituents. The method entails condensation of two 1-acyldipyrromethanes in the presence of a metal salt (MgBr2, 3 mol equiv) and a noncoordinating base (DBU, 10 mol equiv) in a noncoordinating solvent (toluene) with heating (conventional or microwave
描述了一种新的合成方法,用于合成带有四个(A 4,顺式-A 2 B 2,顺式-ABC 2,反式-A 2 B 2)或更少(A,顺式-AB,顺式-A 2,反式- A 2)内消旋取代基。该方法需要在金属盐(MgBr 2,3摩尔当量)和非配位碱(DBU,10摩尔当量)在非配位溶剂(甲苯)中加热(常规或微波辐射)并暴露于空气中。反式-A 2 B 2-或反式-A 2-卟啉的合理合成是通过两个相同的1-酰基二吡咯甲烷的缩合反应实现的。各种内消旋的统计综合通过两个不相同的1-酰基吡咯烷甲烷的缩合获得取代的卟啉。两种途径都具有吸引人的特征,包括(1)无加扰;(2)高浓度(100 mM)的大环形成步骤中的高收率(最高60%);(3)合理的范围(芳基,杂芳基,烷基或无取代基),(4)微波辐射反应时间短(〜2 h),(5)容易进行脱金属的卟啉镁产物和(6)色谱纯化简便。统计途径的主要优点是获得了顺式取代的卟啉,而没有相应的反式异构体。例如,A
Palladium-catalyzed regioselective C-2 arylation of 7-azaindoles, indoles, and pyrroles with arenes
作者:Joydev K. Laha、Rohan A. Bhimpuria、Dilip V. Prajapati、Neetu Dayal、Shubhra Sharma
DOI:10.1039/c6cc00133e
日期:——
A palladium-catalyzed regioselective C-2 arylation of 7-azaindoles, indoles, and pyrroles with arenes has been developed. The study unveils that a critical substrate dependent acid concentration is essential for achieving exclusive...
There is provided compounds of formula I,
wherein R
1
to R
7
have meanings given in the description, which are useful in the prophylaxis and in the treatment of arrhythmias, in particular atrial and ventricular arrhythmias.
[EN] 1H-PYRROLO[2,3-B] PYRIDINE DERIVATIVES AND THEIR USE AS KINASE INHIBITORS<br/>[FR] DÉRIVÉS DE 1H-PYRROLO[2,3-B]PYRIDINE ET LEUR UTILISATION COMME INHIBITEURS DE KINASES
申请人:VERNALIS R & D LTD
公开号:WO2013114113A1
公开(公告)日:2013-08-08
The inventions relates to compounds of (I) and therapeutic uses thereof : (I) The terms Z, Y, and R1 are as defined in the claims.
本发明涉及式(I)化合物的化合物及其治疗用途:(I) 其中Z、Y和R1的定义如权利要求中所述。
1H-PYRROLO[2,3-B] PYRIDINE DERIVATIVES AND THEIR USE AS KINASE INHIBITORS
申请人:Vernalis (R&D) Limited
公开号:US20150011533A1
公开(公告)日:2015-01-08
The inventions relates to compounds of (I) and therapeutic uses thereof: (I) The terms Z, Y, and R
1
are as defined in the claims.