25-Hydroxycycloart-23-en-3-one
Reference standards.
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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.
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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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J Nat Prod. 2006 Apr;69(4):604-7.
Biotransformation of cycloartane-type triterpenes by the fungus Glomerella fusarioides.[Pubmed:
16643035]
Biotransformation of three cycloartane-type triterpenes, cycloartenol (1), 24-methylenecycloartanol (2), and cycloartenone (3), by the fungus Glomerella fusarioides was studied.
METHODS AND RESULTS:
Compound 1 was converted to 3, cycloart-25-ene-3beta,24-diol (4), and cycloartane-3beta,24,25-triol (5). Compound 2 was metabolized to cycloeucalenol (6) and two new compounds, 24-methylcycloartane-3beta,24,24(1)-triol (7) and 24(1)-methoxy-24-methylcycloartane-3beta,24-diol (8). Compound 3 was converted into two new metabolites, 4alpha,4beta,14alpha-trimethyl-9beta,19-cyclopregnane-3,20-dione (9) and 25-hydroxy-24-methoxycycloartan-3-one (14), and four known compounds, viz., cycloartane-3,24-dione (10), 24-hydroxycycloart-25-en-3-one (11), (23E)-25-Hydroxycycloart-23-en-3-one (12), and 24,25-dihydroxycycloartan-3-one (13).
CONCLUSIONS:
The structures of four new metabolites, 7, 8, 9, and 14, were established by spectroscopic methods.
Chem Biodivers. 2013 Sep;10(9):1613-22.
Cycloartanes from the gum resin of Gardenia gummifera L.f.[Pubmed:
24078595]
The gum resin exuding from the leaf buds of Gardenia gummifera was investigated.
METHODS AND RESULTS:
Eight new cycloartane triterpenes, 1-6, 8, and 10, together with two known triterpenes, 25-Hydroxycycloart-23-en-3-one (7) and cycloartenone (9), were isolated and identified by extensive NMR spectroscopy. For cycloartenone (9), full NMR assignments are given as these data were not available in the literature.
CONCLUSIONS:
Eight compounds possess a C(3)=O group, two are 3,4-secocycloartanes bearing a free C(3)OOH group; in one of the cycloartanes, gummiferartane-9 (10), ring A occurs as a seven-membered lactone.
