Nemorensine

CAS# 50906-96-2

Nemorensine

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Quality Control of Nemorensine

Number of papers citing our products

Chemical structure

Nemorensine

3D structure

Chemical Properties of Nemorensine

Cas No. 50906-96-2 SDF Download SDF
PubChem ID 442746 Appearance Powder
Formula C18H27NO5 M.Wt 337.41
Type of Compound Alkaloids Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
SMILES CC1CC2(CC(=O)OC3CCN4C3C(CC4)COC(=O)C1(O2)C)C
Standard InChIKey DNEINKNDPRUHLP-NDBJNJODSA-N
Standard InChI InChI=1S/C18H27NO5/c1-11-8-17(2)9-14(20)23-13-5-7-19-6-4-12(15(13)19)10-22-16(21)18(11,3)24-17/h11-13,15H,4-10H2,1-3H3/t11?,12-,13-,15-,17-,18-/m1/s1
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.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of Nemorensine

In vitro

Indirect Determination of Pyrrolizidine Alkaloids by Flame Atomic Absorption Spectrometry[Reference: WebLink]

Analytical Letters, 2006 , 22 (15) :3041-3055.

This paper studies the formation and extraction of ion pairs of some alkaloids derived from pyrrolizidine.
METHODS AND RESULTS:
The substances studied are Nemorensine, Platyphylline, Senecionine and Seneciphylline, and the ion pairs studied and extracted are formed with Bil4. The method consists of extracting an ion pair between the organic base and the inorganic complex, the metal is measured in the organic phase (1,2 dichloroethane) by Flame AAS. The optimal experimental conditions, pH, concentration of BiI4 , shaking time, phase ratio, number of extractions, and the range of calibration are studied for these substances. The linear range in organic phase is 0.13–1.91 mg.mL.
CONCLUSIONS:
The standard deviation of the method varies between 2.4–3.2%, depending on the substance analyzed. The interferences produced by various substances are studied.

Protocol of Nemorensine

Structure Identification
J Org Chem. 1999 Jul 23;64(15):5542-5546.

Enantiospecific Synthesis of (+)-Nemorensic Acid, a Necic Acid Component of the Macropyrrolizidine Alkaloid, Nemorensine.[Pubmed: 11674618]


METHODS AND RESULTS:
A concise enantiospecific synthesis of nemorensic acid 3, a necic acid component of the macropyrrolizidine alkaloid Nemorensine 2, isolated from Senecio nemorensis L., is described. Reaction of an epsilon-halo-alpha,beta-unsaturated ester (8), readily accessible from a monoterpene (-)-carvone, with samarium iodide gave a fragmentation product (9), where a carbon-carbon bond cleavage reaction occurred between the gamma and delta positions of the carbonyl group, regioselectively.
CONCLUSIONS:
Deprotection of the silyl group of 9 brought about an intramolecular cyclization to provide tetrahydrofuran derivatives (10), which, upon chemical modification of the side chain, gave nemorensic acid.

Nemorensine Dilution Calculator

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Nemorensine Molarity Calculator

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Preparing Stock Solutions of Nemorensine

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.9638 mL 14.8188 mL 29.6375 mL 59.2751 mL 74.0938 mL
5 mM 0.5928 mL 2.9638 mL 5.9275 mL 11.855 mL 14.8188 mL
10 mM 0.2964 mL 1.4819 mL 2.9638 mL 5.9275 mL 7.4094 mL
50 mM 0.0593 mL 0.2964 mL 0.5928 mL 1.1855 mL 1.4819 mL
100 mM 0.0296 mL 0.1482 mL 0.2964 mL 0.5928 mL 0.7409 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.

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References on Nemorensine

Enantiospecific Synthesis of (+)-Nemorensic Acid, a Necic Acid Component of the Macropyrrolizidine Alkaloid, Nemorensine.[Pubmed:11674618]

J Org Chem. 1999 Jul 23;64(15):5542-5546.

A concise enantiospecific synthesis of nemorensic acid 3, a necic acid component of the macropyrrolizidine alkaloid Nemorensine 2, isolated from Senecio nemorensis L., is described. Reaction of an epsilon-halo-alpha,beta-unsaturated ester (8), readily accessible from a monoterpene (-)-carvone, with samarium iodide gave a fragmentation product (9), where a carbon-carbon bond cleavage reaction occurred between the gamma and delta positions of the carbonyl group, regioselectively. Deprotection of the silyl group of 9 brought about an intramolecular cyclization to provide tetrahydrofuran derivatives (10), which, upon chemical modification of the side chain, gave nemorensic acid.

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