Exploring Derivatives of Quinazoline Alkaloid <scp>l</scp>-Vasicine as Cap Groups in the Design and Biological Mechanistic Evaluation of Novel Antitumor Histone Deacetylase Inhibitors
作者:Mudassier Ahmad、Mushtaq A. Aga、Javeed Ahmad Bhat、Brijesh Kumar、Abdul Rouf、Neena Capalash、Mubashir Javeed Mintoo、Ashok Kumar、Priya Mahajan、Dilip Manikrao Mondhe、Amit Nargotra、Parduman Raj Sharma、Mohmmad Afzal Zargar、Ram A. Vishwakarma、Bhahwal Ali Shah、Subhash Chandra Taneja、Abid Hamid
DOI:10.1021/acs.jmedchem.7b00322
日期:2017.4.27
inhibited cancer cell growth and induced cell death by various mechanisms. However, 4a was found to induce cell death independent of ROS generation, and unlike many natural product based HDAC inhibitors, 4a was found to be nontoxic under in vivo conditions. Importantly, we for the first time report the possibility of using a 3-hydroxypyrrolidine cap for the synthesis of HDAC inhibitors with good potency
Synthesis of Ofornine mimics from natural product l-vasicine as anti-hypertensive agents
作者:Mushtaq A. Aga、Sheikh Rayees、Abdul Rouf、Brijesh Kumar、Anjna Sharma、P.V.V.S. Nagaraju、Gurdarshan Singh、Subhash C. Taneja
DOI:10.1016/j.bmc.2017.01.006
日期:2017.2
report the chemical synthesis of Ofornine mimics from l-vasicine, structure-activity relationship studies and their in vivo screening for anti-hypertensive action in Wistar rats. It was observed that most of the analogs possessed anti-hypertensive effect; however, the duration of the effect was variable and mostly transient. The results demonstrated that the analogs 12, 13, 14, 15, and 16 showed a sharp
Redox Condensations of <i>o</i>-Nitrobenzaldehydes with Amines under Mild Conditions: Total Synthesis of the Vasicinone Family
作者:Oleg I. Afanasyev、Evgeniya Podyacheva、Alexander Rudenko、Alexey A. Tsygankov、Maria Makarova、Denis Chusov
DOI:10.1021/acs.joc.0c00794
日期:2020.7.17
A totalsynthesis of the vasicinone family of natural products from bulk chemicals was developed. Reductive condensation of o-nitrobenzaldehydes with amines utilizing iron pentacarbonyl as a reducing agent followed by subsequent oxidation leads to a great variety of polycyclic nitrogen-containing heterocycles under mild conditions. Enantiomerically pure vasicinone, rutaecarpine, isaindigotone, and
PROCESS FOR THE PREPARATION OF OPTICALLY ACTIVE N-BENZYL-3 HYDROXYPYRROLIDINES
申请人:Taneja Subhash Chandra
公开号:US20120101285A1
公开(公告)日:2012-04-26
The present invention relates to a facile, highly efficient and economical process for the preparation of optically active N-benzyl-3-hydroxypyrrolidine in high yield from a naturally occurring alkaloid vasicine. The natural alkaloid vasicine is used as a precursor of (S)—N-benzyl-3-hydroxypyrrolidine and (R)—N-benzyl-3-hydroxypyrrolidines which can easily be sourced from the medicinal plant Adatoda vasica by the method known in the art and transformed to optical isomers (R) and (S)—N-benzyl-3-hydroxypyrrolidine by the method described in the present invention.
[EN] A PROCESS FOR THE PREPARATION OF OPTICALLY ACTIVE N-BENZYL-3 HYDROXYPYRROLIDINES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE N-BENZYL-3-HYDROXYPYRROLIDINES OPTIQUEMENT ACTIVES