3alpha-Angeloyloxypterokaurene L3
3alpha-Angeloyloxypterokaurene L3 is a natural product from Wedelia trilobata.
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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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Journal of Tropical and Subtropical Botany, 2015,23(6) :703-709.
Qualitative and Quantitative Analysis of Diterpenoid Compounds in Sphagneticola trilobata (L.) Pruski[Reference:
WebLink]
In order to understand the chemical constituents of Sphagneticola trilobata (L.) Pruski, eight diterpenoids were isolated from the ethanol extract of its whole plants.
METHODS AND RESULTS:
On the basis of spectral data, they were identiifed as ent-16β,17-dihydroxy-9(11)-kauren-19-oic acid (1), cussovantonin B (2), ent-16-kauren-19-oic acid (3), ent-3β-hydroxy-16-kauren-19-oic acid (4), 16α-hydroxy-ent-kauran-19-oic acid (5), 2β,16α-dihydroxy-ent-kauran-19-oic acid (6), 3alpha-Angeloyloxypterokaurene L3 (7) and pterokaurene L3 (8). Compound 4 were isolated from genus Sphagneticola for the first time, and compounds 1, 2 and 6 were isolated from S. trilobata for the first time. Compound 3 showed strong antibacterial activity against several bacteria and further inhibited signiifcantlyα-glucosidase activity in vitro.
CONCLUSIONS:
Based on structural derivation with pentalfuorobenzyl bromide coupled with GC-MS techniques, the contents of compound 3 in the stem and leaves of S. trilobata were (1.00±0.21) mg g–1 FW and (0.78±0.04) mg g–1 FW, respectively.
