158398-82-4

Upstream product

• 283152-31-8 4-(2-nitrophenyl)-1-(dimethylamino)-1-aza-1,3-butadiene 
• 212393-97-0 7-bromo-4-methoxy-5,8-quinolinedione 
• 212394-01-9 1,4-dihydro-6-chloro-4-(2'-nitrophenyl)pyrido[3,2-g]-quinoline-5,10-dione 
• 115170-26-8 4-methoxy-5,8-quinolinedione 
• 1466-88-2 2-nitrocinnamic aldehyde 
• 124-41-4 sodium methylate 
• 191849-03-3 4-chloro-6-(2'-nitrophenyl)pyrido[3,2-g]-quinoline-5,10-dione 
• 158398-81-3 1,4-dihydro-6-methoxy-4-(2'-nitrophenyl)pyrido[3,2-g]quinoline-5,10-dione 

Downstream Products

• 129722-90-3 meridine 

Relevant academic research and scientific papers

Synthesis of cystodamine, a pentacyclic aza-aromatic alkaloid

A pentacyclic aza-aromatic alkaloid, cystodamine (6), and its isomer (11) were synthesized from 7-(or 6-)bromo-4-chloro-5,8-quinolinedione (1,8) and o-nitrocinnamaldehyde dimethylhydrazone (2) using hetero Diels-Alder reaction.

Synthesis of meridine, cystodamine, and related compounds including iminoquinolinequinone structure

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.

Synthesis of meridine, a pentacyclic aza-aromatic alkaloid

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.