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Literature DB >> 19399996

NMR quantitation of natural products at the nanomole scale.

Abstract

We describe a simple and accurate method for quantitation by solvent 13C-satellites (QSCS) of very small amounts of natural products using microprobe NMR spectroscopy. The method takes advantage of integration of 13C satellite peaks of deuterated solvents, in particular CDCl3, that have favorable intensities for measurements of samples in NMR microcoils and microprobe tubes in the 1-200 nanomole range.

Entities: Chemical Disease Species

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Year: 2009 PMID： 19399996 PMCID： PMC2753506 DOI： 10.1021/np900009b

Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050

11 in total

1. The application of the ERETIC method to 2D-NMR.

Authors: Nathalie Michel; Serge Akoka
Journal: J Magn Reson Date: 2004-05 Impact factor: 2.229

Review 2. Quantitative 1H NMR: development and potential of a method for natural products analysis.

Authors: Guido F Pauli; Birgit U Jaki; David C Lankin
Journal: J Nat Prod Date: 2005-01 Impact factor: 4.050

3. "Pure by NMR"?

Authors: Timothy D W Claridge; Stephen G Davies; Mario E C Polywka; Paul M Roberts; Angela J Russell; Edward D Savory; Andrew D Smith
Journal: Org Lett Date: 2008-12-04 Impact factor: 6.005

4. Concentration Measurement by Proton NMR Using the ERETIC Method.

Authors: S Akoka; L Barantin; M Trierweiler
Journal: Anal Chem Date: 1999-07-01 Impact factor: 6.986

5. Chlorocyclopropane macrolides from the marine sponge Phorbas sp. assignment of the configurations of phorbasides A and B by quantitative CD.

Authors: Colin K Skepper; John B Macmillan; Guang-Xiong Zhou; Makoto N Masuno; Tadeusz F Molinski
Journal: J Am Chem Soc Date: 2007-03-21 Impact factor: 15.419

6. Design, construction, and validation of a 1-mm triple-resonance high-temperature-superconducting probe for NMR.

Authors: William W Brey; Arthur S Edison; Robert E Nast; James R Rocca; Saikat Saha; Richard S Withers
Journal: J Magn Reson Date: 2006-01-19 Impact factor: 2.229

7. qNMR--a versatile concept for the validation of natural product reference compounds.

Authors: G F Pauli
Journal: Phytochem Anal Date: 2001 Jan-Feb Impact factor: 3.373

8. High-resolution capillary tube NMR. A miniaturized 5-microL high-sensitivity TXI probe for mass-limited samples, off-line LC NMR, and HT NMR.

Authors: Götz Schlotterbeck; Alfred Ross; Remo Hochstrasser; Hans Senn; Till Kühn; Daniel Marek; Oscar Schett
Journal: Anal Chem Date: 2002-09-01 Impact factor: 6.986

9. Amaroxocanes A and B: sulfated dimeric sterols defend the Caribbean coral reef sponge Phorbas amaranthus from fish predators.

Authors: Brandon I Morinaka; Joseph R Pawlik; Tadeusz F Molinski
Journal: J Nat Prod Date: 2009-02-27 Impact factor: 4.050

10. Phorbasides A-E, cytotoxic chlorocyclopropane macrolide glycosides from the marine sponge Phorbas sp. CD determination of C-methyl sugar configurations.

Authors: John B MacMillan; Guang Xiong-Zhou; Colin K Skepper; Tadeusz F Molinski
Journal: J Org Chem Date: 2008-04-16 Impact factor: 4.354

31 in total

1. Assembly of the isoindolinone core of muironolide A by asymmetric intramolecular Diels-Alder cycloaddition.

Authors: Beatris Flores; Tadeusz F Molinski
Journal: Org Lett Date: 2011-07-13 Impact factor: 6.005

2. INTEGRATED APPROACHES TO THE CONFIGURATIONAL ASSIGNMENT OF MARINE NATURAL PRODUCTS.

Authors: Tadeusz F Molinski; Brandon I Morinaka
Journal: Tetrahedron Date: 2012-11-18 Impact factor: 2.457

3. Phorboxazole Synthetic Studies: Design, Synthesis and Biological Evaluation of Phorboxazole A and Hemi-Phorboxazole A Related Analogues.

Authors: Amos B Smith; Anne-Marie L Hogan; Zhuqing Liu; Thomas M Razler; Regina M Meis; Brandon I Morinaka; Tadeusz F Molinski
Journal: Tetrahedron Date: 2011-07-08 Impact factor: 2.457

4. Structure elucidation at the nanomole scale. 3. Phorbasides G-I from Phorbas sp.

Authors: Doralyn S Dalisay; Tadeusz F Molinski
Journal: J Nat Prod Date: 2010-04-23 Impact factor: 4.050

5. NMR quantitation: influence of RF inhomogeneity.

Authors: Huaping Mo; John Harwood; Daniel Raftery
Journal: Magn Reson Chem Date: 2011-09-15 Impact factor: 2.447

6. The carmaphycins: new proteasome inhibitors exhibiting an α,β-epoxyketone warhead from a marine cyanobacterium.

Authors: Alban R Pereira; Andrew J Kale; Andrew T Fenley; Tara Byrum; Hosana M Debonsi; Michael K Gilson; Frederick A Valeriote; Bradley S Moore; William H Gerwick
Journal: Chembiochem Date: 2012-03-01 Impact factor: 3.164

7. Scytonemides A and B, cyclic peptides with 20S proteasome inhibitory activity from the cultured cyanobacterium Scytonema hofmanii.

Authors: Aleksej Krunic; Armelle Vallat; Shunyan Mo; Daniel D Lantvit; Steven M Swanson; Jimmy Orjala
Journal: J Nat Prod Date: 2010-11-08 Impact factor: 4.050

8. Connecting chemotypes and phenotypes of cultured marine microbial assemblages by imaging mass spectrometry.

Authors: Yu-Liang Yang; Yuquan Xu; Roland D Kersten; Wei-Ting Liu; Michael J Meehan; Bradley S Moore; Nuno Bandeira; Pieter C Dorrestein
Journal: Angew Chem Int Ed Engl Date: 2011-05-13 Impact factor: 15.336

9. Lepadins I-K, 3- O-(3'-Methylthio)acryloyloxy-decahydroquinoline Esters from a Bahamian Ascidian Didemnum sp. Assignment of Absolute Stereostructures.

Authors: Sesselja Ómarsdóttir; Xiao Wang; Hong-Bing Liu; Brendan M Duggan; Tadeusz F Molinski
Journal: J Org Chem Date: 2018-10-26 Impact factor: 4.354

10. Application of high-field NMR spectroscopy for characterization and quantitation of submilligram quantities of isolated natural products.

Authors: Aleksej Krunić; Jimmy Orjala
Journal: Magn Reson Chem Date: 2015-08-20 Impact factor: 2.447