8-Prenylluteone
8-Prenylluteone can potently inhibit HIV-1 PR activity.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to
24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Planta Med. 2009 Feb;75(3):268-70.
Prenylisoflavonoids from Erythrina senegalensis as novel HIV-1 protease inhibitors.[Pubmed:
19097000 ]
Eight compounds were isolated from the CH (2)Cl (2) extracts of ERYTHRINA SENEGALENSIS to assess HIV-1 protease (PR) activity inhibition.
METHODS AND RESULTS:
The prenylated isoflavone structures, identified by spectroscopic analysis, were 8-Prenylluteone ( 1), auriculatin ( 2), erysenegalensein O ( 3), erysenegalensein D ( 4), erysenegalensein N ( 5), derrone ( 6), alpinumisoflavone ( 7), and 6,8-diprenylgenistein ( 8). The constituents showed dose-dependent inhibitory activities on HIV-1 PR with IC (50) values from 0.5 to 30.0 muM.
CONCLUSIONS:
Compounds 1 - 5 possessing two hydroxy groups in the 2' and 4' positions of the B ring, potently inhibited HIV-1 PR activity. In addition, 6,8-diprenylgenistein ( 8) with two prenyl groups in the 6 and 8 positions of the A ring and one hydroxy group in the 4' position of B-ring was the most potent HIV-1 PR inhibitor.
Phytochemistry. 2003 Jun;63(4):445-8.
Two prenylated flavonoids from the stem bark of Erythrina burttii.[Pubmed:
12770595]
METHODS AND RESULTS:
From the stem bark of Erythrina burttii, a new isoflavone, 5,2',4'-trihydroxy-7-methoxy-6-(3-methylbut-2-enyl)isoflavone (trivial name, 7-O-methylluteone) and a new flavanone, 5,7-dihydroxy-4'-methoxy-3'-(3-methylbutadienyl)-5'-(3-methylbut-2-enyl)flavanone (trivial name, burttinonedehydrate) along with three known isoflavonoids (8-Prenylluteone, 3-O-methylcalopocarpin and genistein) were isolated. The structures were determined on the basis of spectroscopic evidence.
