A Convenient Access to Biquinoline Carbaldehydes using Nickel-Phosphine Complex-Mediated Homocoupling of Haloquinoline Carbaldehydes in One-Pot Reaction
A new route to the pyrrolo[3,4-c]quinoline ring system has been developed via the 1,5-dipolar electrocyclisation reactions of azomethine ylides derived from easily available 3-formylquinoline derivatives. The intermediacy of azomethine ylides was shown by the trapping of the proposed dipoles with N-phenylmaleimide.
通过衍生自易得的3-甲酰基喹啉衍生物的甲亚胺基团的1,5-偶极电环化反应,已经开发了一条通往吡咯并[3,4- c ]喹啉环系统的新途径。通过用N-苯基马来酰亚胺捕获拟议的偶极子,表明了甲亚胺烷基化物的中间体。
Synthesis of Novel 2-Substituted Quinoline Derivatives: Antimicrobial, Inotropic, and Chronotropic Activities
作者:A. M. Farghaly、N. S. Habib、M. A. Khalil、O. A. El-Sayed、A. E. Bistawroos
DOI:10.1002/ardp.19903230414
日期:——
Three novel series of quinoline derivatives have been prepared by cyclization of the intermediate 3‐(13‐dioxolan‐2‐yl)‐2‐substituted thiocarbamoyl‐hydrazinoquinolines with different α‐halocarbonyl compounds. These series are: 3‐(1,3‐dioxolan‐2‐yl)‐2‐(3‐substituted‐4‐phenylthiazolin‐2‐ylidene)hy‐drazinoquinolines; 3‐(1,3‐dioxolan‐2‐yl)‐2‐(3‐substituted‐5‐ethoxycarbonyl‐4‐methylthiazoline‐2‐ylidene)hydrazinoquinolines
A new scaffold of topoisomerase I inhibitors: Design, synthesis and biological evaluation
作者:Alberto Mazza、Egle M. Beccalli、Alessandro Contini、Aida Nelly Garcia-Argaez、Lisa Dalla Via、Maria Luisa Gelmi
DOI:10.1016/j.ejmech.2016.08.045
日期:2016.11
The synthesis of a new hexacyclic system was realized starting from tryptamines and exploiting as a key step a sequential Pd-catalyzed N-arylation/acylation reaction. Having topoisomerases as biological target and the campthotecins class as benchmark, the new scaffold was decorated with substituents having different polarity and tested as Topoisomerase I inhibitors.
SYNTHESIS AND FREE RADICAL SCAVENGING PROPERTY OF SOME QUINOLINE DERIVATIVES
作者:R SUBASHINI、S MOHANA ROOPAN、F NAWAZ KHAN
DOI:10.4067/s0717-97072010000300008
日期:——
In the present work synthesis of 2-chloroquinoline-3-carbaldehydes (1a-g), 2-chloro-3-(1, 3-dioxolan-2-yl)quinolines (2a-g) and antioxidant activity using the DPPH assays is reported. The results showed that the compounds 1b, 1c, 2b, 2e, 2f possessed 84.65 to 85.75 % radical scavenging activity where as compound 1g showing 92.96% radical scavenging activity.
Facile Synthesis of 1-Hydroxy-5-methoxy-Benzo[<i>f</i>][2,7]naphthyridines
作者:P. V. Rajeev、S. P. Rajendran
DOI:10.1080/00397910903320258
日期:2010.8.31
A new route for the synthesis of 1-hydroxy-5-methoxy-benzo[f][2,7]naphthyridines has been developed from easily available precursor 2-chloro-3-formyl quinolines. The 2-methoxy-3-formyl quinolines were prepared and condensed with glycine ethyl ester hydrochloride. This resulted in the formation of an imines, which on cyclization with Dowtherm A yielded 1-hydroxy-5-methoxy-1,2-dihydrobenzo[f][2,7]naphthyridines.