Dehydroformouregine
Standard reference
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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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The Alkaloids: Chemistry and Pharmacology.1989;35:1–76.
Chapter 1 Alkaloids from Guatteria.[Reference:
WebLink]
METHODS AND RESULTS:
Dehydronornuciferine and O-methyldehydroisopiline are isolated from G. ouregou, where they cooccur with the corresponding noraporphines, and the N-formyl derivatives Dehydroformouregine and formouregine.
Chinese Traditional & Herbal Drugs, 2015 , 46 (21) :3146-3150.
Chemical constituents of Sabia parviflora.[Reference:
WebLink]
To investigate the chemical constituents from the stems and leaves of Sabia parviflora.
METHODS AND RESULTS:
Column chromatographies over silica gel, Sephadex LH-20, reverse phase C_(18), MCI, and semi-preparative HPLC were used repeatedly for separation and purification of chemical constituents, and their structures were identified by NMR and MS spectra data with those reported in literature. Fourteen compounds were obtained from the petroleum ether extract of S. parviflora, and identified as β-sitosterol(1), mominine(2),(20S)-3-oxo-20-hydroxytaraxastane(3), fluoren-9-one(4), N-formyldehydroanonain(5), betulinic acid(6), Dehydroformouregine(7), palmitic acid(8), 20-hydroxy-lupan-3-one(9), 3-oxooleanolic acid(10), erythrodiol(11), methyl betulinate(12), N-formyl-annonain(Z)(13), and N-formyl-O-methylisopiline(14).
CONCLUSIONS:
Among the 14 compounds, there are seven pentacyclic triterpenes, four alkaloids, and three other compounds; compounds 3—10 and 12—14 are isolated from this plant and the plants of Sabia Colebr. for the first time, and the ~(13)C-NMR spectral assignments of compounds 5, 7, and 14 are reported for the first time.
