Indoline and piperazine containing derivatives as a novel class of mixed D2/D4 receptor antagonists. Part 1: Identification and structure–activity relationships
Optimization of the lead compound 2-[-4-(4-chloro-benzyl)-piperazin-1-yl]-1-(2,3-dihydro-indol-1-yl)-ethanone 1 by systematic structure-activity relation (SAR) studies lead to two potent compounds 2-[-4-(4-chloro-benzyl)-piperazin-1-yl]-1-(2-methy-2,3-dihydro-indol-1-yl)-ethanone 2n and 2-[-4-(4-chloro-benzyl)-piperazin-1-yl]-1-(2-methy-2,3-dihydro-indol-1-yl)-ethanone 7b. Their related synthesis was
作者:Yuanyuan Yu、Jingwen Li、Long Jiang、Jing-Ren Zhang、Liansuo Zu
DOI:10.1002/anie.201705539
日期:2017.7.24
The first catalytic enantioselective asymmetric aza‐pinacolrearrangement is reported. The reactions are catalyzed by a chiral phosphoric acid and proceed via a highly organized transition state involving a cyclic aza‐ortho‐xylylene intermediate to afford the indoline structures with good to excellent enantioselectivity. The synthetic utility of this method is demonstrated by the asymmetric synthesis
An Indoxyl-Based Strategy for the Synthesis of Indolines and Indolenines
作者:Yuanyuan Yu、Guang Li、Long Jiang、Liansuo Zu
DOI:10.1002/anie.201505173
日期:2015.10.19
the synthesis of indolines and indolenines via unprecedented aza‐pinacol and aza‐semipinacol rearrangements was developed. This method provides direct access to the core structures of several classes of indole alkaloids. The synthetic utility was demonstrated by the divergent synthesis of an array of functionalized polycyclic structures from a common intermediate and the formal total synthesis of the
Experimental and Computational Studies on the CH Amination Mechanism of Tetrahydrocarbazoles via Hydroperoxides
作者:Naeem Gulzar、Kevin Mark Jones、Hannelore Konnerth、Martin Breugst、Martin Klussmann
DOI:10.1002/chem.201405376
日期:2015.2.16
The acid‐catalyzed reactions of photochemically generated tetrahydrocarbazole peroxides with anilines have been studied experimentally and computationally to identify the underlying reaction mechanism. The kinetic data indicate a reaction order of one in the hydroperoxide and zero in the aniline. Computational investigations using density functional theory support the experimental findings and predict
An efficient method to access spiro pseudoindoxyl ketones: evaluation of indoxyl and their <i>N</i>-benzylated derivatives for inhibition of the activity of monoamine oxidases
作者:Karuppaiah Perumal、Jiseong Lee、Sesuraj Babiola Annes、Subburethinam Ramesh、T. M. Rangarajan、Bijo Mathew、Hoon Kim
DOI:10.1039/d3ra03641c
日期:——
metal-free approach was developed to obtain novel pseudoindoxyl derivatives. The reaction was mediated by tBuOK on tetrahydrocarbazole 8 in dimethyl sulfoxide (DMSO) at room temperature through the hydroxylation of the indole double bond and a subsequent pinacol-type rearrangement. Spiro pseudoindoxyl compounds and their N-benzylated derivatives were assessed for their inhibitory activities against monoamine