Deoxyisocalyciphylline B
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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Chem Biodivers. 2007 Feb;4(2):129-38.
Secophnane-type alkaloids from Daphniphyllum oldhami.[Pubmed:
17311225]
METHODS AND RESULTS:
Four new alkaloids, daphnioldhanins D-G (1-4, resp.), together with five known alkaloids, daphmacropodine (5), secodaphniphylline (6), deoxycalyciphylline B (7), Deoxyisocalyciphylline B (8), and daphmanidin A (9), were isolated from the roots of Daphniphyllum oldhami. Their structures were elucidated on the basis of spectroscopic data and chemical methods.
CONCLUSIONS:
Compound 1 at 2.0 microM showed potent antioxidant activity against H(2)O(2)-induced impairment in PC12 cells.
J Org Chem. 2003 Oct 17;68(21):7961-6.
Two novel alkaloids with a unique fused hexacyclic skeleton from Daphniphyllum subverticillatum.[Pubmed:
14535771]
METHODS AND RESULTS:
Two novel major alkaloids, deoxycalyciphylline B (1) and Deoxyisocalyciphylline B (2) with a unique fused hexacyclic skeleton, together with a quite recently reported alkaloid calyciphylline B (3), were isolated from the stem of Daphniphyllum subverticillatum. Their structures were established by spectral methods and chemical evidence, especially 2D NMR techniques.
CONCLUSIONS:
The structure of 1 was further confirmed by a single-crystal X-ray diffraction determination.
J Nat Prod. 2006 Jan;69(1):79-82.
Alkaloids from Daphniphyllum longeracemosum.[Pubmed:
16441073]
METHODS AND RESULTS:
Four new Daphniphyllum alkaloids, daphnilongeranins A-D (1-4), along with four known ones, daphniphylline, longistylumphylline A, Deoxyisocalyciphylline B, and daphnicyclidin D, were isolated from the leaves and stems of Daphniphyllum longeracemosum. Daphnilongeranin A (1) is the first seco-10,17-longistylumphylline A type Daphniphyllum alkaloid, and daphnilongeranin B (2) is a new C-22 nor-Daphniphyllum alkaloid based on a new C21 skeleton.
CONCLUSIONS:
Their structures and stereochemistry were determined using spectroscopic data and chemical methods.
