Methyl 2-(5-acetyl-2,3-dihydrobenzofuran-2-yl)propenoate
Methyl 2-(5-acetyl-2,3-dihydrobenzofuran-2-yl)propenoate is a natural product from Vernonia cinerea.
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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. 2003 Mar;69(3):258-64.
New dihydrobenzofurans and triterpenoids from roots of Microglossa pyrifolia.[Pubmed:
12677531 ]
From the roots of Microglossa pyrifolia (Lam.) Kuntze (Asteraceae, tribe Astereae), used in East African traditional Medicine to treat a variety of ailments, seven dihydrobenzofurans and seven triterpenoids (five dammaranes and two 28- nor-oleanenes) were isolated.
METHODS AND RESULTS:
Their structures were elucidated by spectroscopic (UV, MS and NMR) means. With the exception of the tremetone derivative 1, all of the dihydrobenzofurans found in this drug possess the rare 6-acetyl-5-hydroxy substitution pattern. Dihydrobenzofurans 1 [methyl 2-(5-acetyl-2,3-dihydrobenzo[beta]furan-2-yl)propenoate(Methyl 2-(5-acetyl-2,3-dihydrobenzofuran-2-yl)propenoate)], 3 (methyl2-(6-acetyl-5-hydroxy-2,3-dihydrobenzofuran-2-yl)propenoate] and 7 (6-acetyl-5-hydroxy-2-(1-hydroxy-2-propenyl)-3-methoxy-2,3-dihydrobenzofuran) as well as the triterpenes 3beta-acetoxy-25-hydroxydammara-20,23-diene ( 9), 3beta-acetoxy-24-oxo-dammara-20,25-diene ( 11), 17beta-hydroxy-3,16-dioxo-28-norolean-12-ene ( 12) and 17beta-hydroxy-3,11,16-trioxo-28-norolean-12-ene ( 13) are new natural products, to the best of our knowledge.
