98192-57-5

Upstream product

• 7758-73-8 5,7-dihydroxy-4-phenyl-2H-1-benzopyran-2-one 
• 108-12-3 isopentanoyl chloride 
• 98-86-2 acetophenone 
• 108-73-6 3,5-dihydroxyphenol 
• 26103-97-9 phloroisovalerophenone 
• 94-02-0 ethyl 3-oxo-3-phenylpropionate 

Downstream Products

• 18483-64-2 mammeisin 
• 30563-62-3 4-phenyl-5-hydroxy-6-(3-methyl-1-oxobutyl)-2'-(1-hydroxy-1-methylethyl)-3',4'-dihydro(5',4':7,8)furanocoumarin 

Relevant academic research and scientific papers

Neoflavonoids as inhibitors of HIV-1 replication by targeting the Tat and NF-κB pathways

Twenty-eight neoflavonoids have been prepared and evaluated in vitro against HIV-1. Antiviral activity was assessed on MT-2 cells infected with viral clones carrying the luciferase reporter gene. Inhibition of HIV transcription and Tat function were teste

6-Acyl-4-aryl/alkyl-5,7-dihydroxycoumarins as anti-inflammatory agents

A series of coumarin derivatives were synthesized in two steps from phloroglucinol. The anti-inflammatory activities of these derivatives were evaluated by means of inhibiting NO production in LPS-induced RAW 264.7 cells. Derivatives 3, 8, 10, 11, and 13 exhibited low micromolar levels of anti-inflammatory activities, and these derivatives also protected DNA against hydroxyl radical attack. Coumarin derivative 8 was the most potent derivative among those tested herein against NO production in LPS-induced RAW 264.7 cells with an IC50 value of 7.6 μM, and it effectively reduced the hydroxyl radical production by 50% at 100 μM in the electron spin resonance study.

Synthesis of Mammea Coumarins. Part 1. The Coumarins of the Mammea A, B, and C Series

The naturally-occuring Mammea coumarins of the 4-phenyl-(mammea A), propyl-(mammea B), and 4-pentyl-(mammea C) series have been prepared by Pechmann condensation of an acylphloroglucinol (3-methylbutyryl-, 2-methylbutyryl-, butyryl-, or 2-methylpropionyl-) with the appropriate β-ketoester to give a mixture of 6- and 8-acyl-5,7-dihydroxycoumarins that could be separated.C-Alkylation with 3-methylbut-2-enyl bromide, or 3,7-dimethylocta-2,6-dienyl chloride, in aqueous potassium hydroxide completed the synthesis of the Mammea coumarins having unmodified prenyl or geranyl substituents; oxidative modification of the prenyl group led to the mammea cyclo E and cyclo F coumarins.Some mammea cyclo D (chromeno) coumarins were synthesized by reaction of acylcoumarins with 1,1-dimethoxy-3-methylbutan-3-ol.