摘要 吲哚的N-酰化已经通过无机碱催化完成。它为以链烯基羧酸盐为酰化剂制备N-酰化吲哚提供了有效而简单的催化体系。使用Na 2 CO 3作为催化剂在MeCN中于120°C对多种吲哚进行平滑的N-酰化反应,从而以良好或极好的收率得到相应的N-酰基吲哚。 吲哚的N-酰化已经通过无机碱催化完成。它为以链烯基羧酸盐为酰化剂制备N-酰化吲哚提供了有效而简单的催化体系。使用Na 2 CO 3作为催化剂在MeCN中于120°C对多种吲哚进行平滑的N-酰化反应,从而以良好或极好的收率得到相应的N-酰基吲哚。
[EN] 4-(BENZOIMIDAZOL-2-YL)-THIAZOLE COMPOUNDS AND RELATED AZA DERIVATIVES<br/>[FR] COMPOSÉS DE 4-(BENZOIMIDAZOL-2-YLE)-THIAZOLE ET DÉRIVÉS AZA ASSOCIÉS
申请人:ACTELION PHARMACEUTICALS LTD
公开号:WO2013114332A1
公开(公告)日:2013-08-08
The invention relates to compounds of Formula (I) wherein ring A, X, (R1)n, R2, R3, R4, R4', R5, n, and p are as described in the description; to pharmaceutically acceptable salts thereof, and to the use of such compounds as medicaments, especially as modulators of the CXCR3 receptor.
Site-Selective Functionalization of 7-Azaindoles via Carbene Transfer and Isolation of <i>N</i>-Aromatic Zwitterions
作者:Junheng Liu、Guangyang Xu、Shengbiao Tang、Qun Chen、Jiangtao Sun
DOI:10.1021/acs.orglett.0c03653
日期:2020.12.4
metal-carbene transfer reaction of 7-azaindoles has been conducted, and the unprecedented dearomative N7-alkylation reaction has been accomplished via ruthenium catalysis. Importantly, through a sequential dearomatization–aromatization process, an isolable, and new class of azaindole-based N-aromatic zwitterions has been discovered from the reaction of 7-azaindoles and diazoesters.
[EN] CXCR3 RECEPTOR ANTAGONISTS<br/>[FR] ANTAGONISTES DU RÉCEPTEUR CXCR3
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2010126811A1
公开(公告)日:2010-11-04
The present invention relates to compounds of formula (I), and pharmaceutically acceptable salts thereof, wherein R1 to R5, A, B, D and X 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.
herein for the simple, convenient and efficient oxidation of indoles to isatins using pyridinium chlorochromate with the aid of polyaniline salt catalyst at room temperature or at reflux in dichloroethane. Interestingly, oxidation of 3-alkyl indoles by this procedure gave 3-hydroxy 3-alkyl oxindoles. On the other hand, indol-3-alkanols gave mixtures of isatins and 3-formyl indoles. This is the first example
Directing-Group-Assisted Manganese-Catalyzed Cyclopropanation of Indoles
作者:Pratip K. Dutta、Jyoti Chauhan、Mahesh Kumar Ravva、Subhabrata Sen
DOI:10.1021/acs.orglett.9b00150
日期:2019.4.5
The first manganese-catalyzed cyclopropanation of indoles is reported in moderate to excellent yield with methyl-2-diazo-2-arylacetates. This new strategy involved acetyl (COCH3) as the directing group and exhibited exceptional functional group tolerance. In the absence of stereodirecting groups the desired products were obtained as a mixture of diastereomers (7:3 → 8:2). Control experiments and DFT