<i>N</i>-Methylpyrrolidone Hydroperoxide/Cs<sub>2</sub>CO<sub>3</sub>as an Excellent Reagent System for the Hydroxy-Directed Diastereoselective Epoxidation of Electron-Deficient Olefins
作者:Napoleon John Victor、Janardhanan Gana、Kannoth Manheri Muraleedharan
DOI:10.1002/chem.201501929
日期:2015.10.12
This report introduces N‐methylpyrrolidone hydroperoxide (NMPOOH)/base as an excellent reagent system for hydroxy‐directed syn selective epoxidation of electron‐deficient olefins, characterized by high diastereoselectivity, short reaction times and remarkable chemoselectivity, especially in presence of oxidatively labile nitrogen or sulfur atoms. NMPOOH also proves efficient in the oxidation of electron‐deficient
Reactive Pt(II) center as part of redox-active quinoline-based heterocyclic scaffolds toward new anticancer leads
作者:Sateeshkumar Kumbhakonam、Soumya Saroj、Nalini Venkatesan、Karunagaran Devarajan、Muraleedharan K. Manheri
DOI:10.1016/j.bmcl.2020.127594
日期:2020.11
New cisplatin analogs in which the diamminedichloro-Pt(II) unit is conjugated to dihydroquinoline- or tetrahydroquinoline frameworks were synthesized and subjected to biological evaluation in order to understand their effects on cellular redox homeostasis and cell viability. They exhibited better selectivity towards cancer cells (A549) compared to mice fibroblast NIH3T3 cells, with cytotoxicity in
[EN] A PROCESS FOR THE PREPARATION OF THE CORE STRUCTURE IN QUINOLONE AND NAPTHYRIDONE CLASS OF ANTIBIOTICS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE LA STRUCTURE CENTRALE D'ANTIBIOTIQUES APPARTENANT AUX CLASSES QUINOLONE ET NAPHTHYRIDONE
申请人:INDIAN INST TECHNOLOGY MADRAS
公开号:WO2013157018A1
公开(公告)日:2013-10-24
This invention relates to quinolone- and naphthyridone derivatives represented by the general formula VII, and a process for their preparation using Baylis-Hillman adducts from substituted aromatic or hetero-aromatic aldehydes and amines of interest as the starting materials. After the tandem Aza-Michael addition and SNAr cyclization, the resulting 4-hydroxy-1,2,3,4-tetrahydroquinoline or 4-hydroxy-1, 2,3,4- tetrahydro-1,8-naphthyridine derivative was subjected to oxidation to get the quinolone or naphthyridone skeleton in one step in good to excellent yields.
Myeong, Jong Cha; Young, Seok Song; Han, Eun-Gu, Journal of Heterocyclic Chemistry, 2008, vol. 45, # 1, p. 235 - 240
作者:Myeong, Jong Cha、Young, Seok Song、Han, Eun-Gu、Lee, Kee-Jung
DOI:——
日期:——
An Expeditious and Metal-Free Synthetic Route towards Quinolones, Naphthyridones and Benzonaphthyridones
作者:Napoleon John Victor、Kannoth Manheri Muraleedharan
DOI:10.1002/adsc.201300891
日期:2014.11.24
AbstractAn efficient, two‐step synthetic strategy has been developed to access the quinolone, naphthyridone and benzonaphthyridone classes of chemotherapeutic agents from Baylis–Hillman adducts. The method involves tandem aza‐Michael addition, SNAr cyclisation followed by oxidation of the resulting 4‐hydroxy‐1,2,3,4‐tetrahydroquinoline or 4‐hydroxy‐1,2,3,4‐tetrahydro‐1,8‐naphthyridine derivative using IBX, and works well with substrates having a wide variety of substitution pattern.magnified image