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16-Epinormacusine B

16-Epinormacusine B

Catalog No. BCN4030
Size Price Stock
20mg $298 In stock
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Quality Control of 16-Epinormacusine B

Chemical structure

16-Epinormacusine B

16-Epinormacusine B Dilution Calculator

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Chemical Properties of 16-Epinormacusine B

Cas No. 126640-98-0 SDF Download SDF
Type of Compound Alkaloids Appearance Powder
Formula C19H22N2O M.Wt 294.4
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other courier with RT , or blue ice upon request.

Preparing Stock Solutions of 16-Epinormacusine B

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.3967 mL 16.9837 mL 33.9674 mL 67.9348 mL 84.9185 mL
5 mM 0.6793 mL 3.3967 mL 6.7935 mL 13.587 mL 16.9837 mL
10 mM 0.3397 mL 1.6984 mL 3.3967 mL 6.7935 mL 8.4918 mL
50 mM 0.0679 mL 0.3397 mL 0.6793 mL 1.3587 mL 1.6984 mL
100 mM 0.034 mL 0.1698 mL 0.3397 mL 0.6793 mL 0.8492 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

Preparation of 16-Epinormacusine B

This product is isolated and purified from the herbs of Voacanga africana

References on 16-Epinormacusine B

Enantiospecific total synthesis of (-)-(E)16-epiaffinisine, (+)-(E)16-epinormacusine B, and (+)-dehydro-16-epiaffinisine as well as the stereocontrolled total synthesis of alkaloid G.[Pubmed: 12868917]

An efficient strategy is described for the total synthesis of the sarpagine-related indole alkaloids (-)-(E)16-epiaffinisine (1), (+)-(E)16-epinormacusine B (2), and (+)-dehydro-16-epiaffinisine (4). A key step employed the chemospecific and regiospecific hydroboration/oxidation at C(16)-C(17); this method has also resulted in the synthesis of (+)-dehydro-16-epinormacusine B (5). The oxy-anion Cope rearrangement followed by protonation of the enolate that resulted under conditions of kinetic control has been employed to generate the key asymmetric centers at C(15), C(16), and C(20) in alkaloid G (7) in a highly stereocontrolled fashion (>43:1). Conditions that favor control of the sarpagine stereochemistry at C(16) vs the epimeric ajmaline configuration at the same stereocenter have been determined. The formation of the required cyclic ether in 4, 5, and 7 was realized with complete control from the top face on treatment of the corresponding alcohols with DDQ/THF or DDQ/aq THF in excellent yields.

Stereospecific, enantiospecific total synthesis of the sarpagine indole alkaloids (E)16-epiaffinisine, (E)16-epinormacusine B, and dehydro-16-epiaffinisine.[Pubmed: 12489960]

[reaction: see text] The first stereospecific total synthesis of the sarpagine indole alkaloids (E)16-epiaffinisine (1), (E)16-epinormacusine B (2), and dehydro-16-epiaffinisine (4) has been completed; this method has also resulted in the synthesis of dehydro-16-epinormacusine B (5). The formation of the required ether in both 4 and 5 was realized with complete control from the top face on treatment of the corresponding alcohols with DDQ/THF in 98% and 95% yields, respectively.


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