71054-80-3

Upstream product

• 71054-83-6 3-Hydroxy-1-phenylmethyl-1H-indol-2-yl methyl ketone 
• 71054-86-9 5-Benzyl-4,5-dihydro-4-oxo-pyrano<3,2-b>indol-2-carbonsaeureethylester 
• 157865-03-7 (1-Benzyl-3-hydroxy-indol-2-yl)-2,4-dioxo-butansaeureethylester 

Relevant academic research and scientific papers

2-Acyl-4,5-dihydro-4-oxo-pyrano[3,2-b]indole

The oxalic acid ester method applied to the 1,3-dicarbonyl compound 1 leads over the 1,3,5,6-tetracarbonyl compound 2 and the pyrone-2-carboxylic acid esters 3 to the carboxylic acids 4. The aldehydes 6 and the nitriles 10 as key substances for further po

Indolopyrones having anti-allergic activity

This invention relates to novel substituted indolopyrones which have utility in preventing allergic and asthmatic reactions in mammals.

Process for the preparation of indolopyrones

This invention relates to a novel process for preparing a group of novel substituted indolopyrones.