129722-90-3Relevant articles and documents
Oxidative Cyclization of Kynuramine and Ynones Enabling Collective Syntheses of Pyridoacridine Alkaloids
Jiang, Dongfang,Wang, Shaozhong
, p. 15532 - 15543 (2021/11/01)
A cerium(III)-catalyzed oxidative cyclization of kynuramine and ynones has been reported as a key reaction in the total synthesis of marine pentacyclic pyridoacridine alkaloids featuring different ring connectivity patterns. The formation of tricyclic benzonaphthyridine rings was identified in the oxidative process. By combining with an intramolecular acylation and the chemoselective late-stage functionalization of pyridine rings, different approaches with 4-10 steps have been designed to accomplish the synthesis of alkaloids demethyldeoxyamphimedine (1), amphimedine (2), meridine (3), isocystodamine (4), N-methylisocystodamine (5), N-hydroxymethylisocystodamine (6), 9-hydroxyisoacididemin (7), neolabuanine A (8), and ecionine A (9).
Synthesis of meridine, cystodamine, and related compounds including iminoquinolinequinone structure
Kitahara, Yoshiyasu,Tamura, Fumiyasu,Nishimura, Miki,Kubo, Akinori
, p. 8421 - 8432 (2007/10/03)
Two aromatic alkaloids, meridine (1) and cystodamine (3), and related compounds (2, 4, 5) were synthesized by hetero Diels-Alder reaction between 4-methoxy- (or 4-chloro-)5,8-quinolinedione and 2-nitrocinnamaldehyde dimethylhydrazone.
Total synthesis of the marine pentacyclic alkaloid meridine
Bontemps, Nataly,Delfourne, Evelyne,Bastide, Jean,Francisco, Christian,Bracher, Franz
, p. 1743 - 1750 (2007/10/03)
The synthesis of the marine pyridoacridine alkaloid meridine (1) has been accomplished in eight steps from 2,5- 2,5-dimethoxy-3-nitroaniline in 9% overall yield.
Synthesis of meridine, a pentacyclic aza-aromatic alkaloid
Kitahara,Tamura,Kubo
, p. 1363 - 1364 (2007/10/02)
A pentacyclic aza-aromatic alkaloid, meridine (1), was synthesized from 4- methoxy-5,8-quinolinedione (4) and o-nitrocinnamaldehyde N,N- dimethylhydrazone (5) in four steps.