Poul Erik Hansen
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Explore the profile of Poul Erik Hansen including associated specialties, affiliations and a list of published articles.
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Recent Articles
1.
Lund T, Krake N, Hansen P, Alatraktchi F
J Labelled Comp Radiopharm
. 2024 Nov;
67(14):434-440.
PMID: 39542829
Deuterium-labeled pyocyanin was prepared from deuterium-labeled phenazine methosulfate in gram scale by a simplified flow photosynthesis in water. The main product was the protonated red form of pyocyanin-d (Pyo-d-H) in...
2.
Ngo T, Bui N, Vo T, Nguyen T, Le H, Phan T, et al.
Nat Prod Res
. 2024 Apr;
:1-7.
PMID: 38656988
Previous results from the our research group have isolated numerous compounds, including novel ones, but the anticancer activity of has not been demonstrated. In this study, from the most active...
3.
Hansen P
Molecules
. 2024 Jan;
29(2).
PMID: 38257249
This paper deals with the synergy between Nuclear Magnetic Resonance (NMR) spectroscopic investigations and DFT calculations, mainly of NMR parameters. Both the liquid and the solid states are discussed here....
4.
Le H, Phan T, Vo T, Ngo T, Ngo H, Hansen P, et al.
Nat Prod Res
. 2023 Aug;
39(1):31-38.
PMID: 37599639
Six compounds were isolated from the ethyl acetate extract of the stems of , including miliutine A acid (), a new cyclofarnesane sesquiterpenoid; miliutine B methyl ester (), a cyclofarnesane...
5.
Hansen P, Darugar V, Vakili M, Kamounah F
Magn Reson Chem
. 2023 Mar;
61(6):356-362.
PMID: 36882383
The three possible 1-(n-pyridinyl)butane-1,3-diones (nPM) have been synthesized. Structures, tautomerism, and conformations are investigated by means of DFT calculations. H and C NMR spectra are assigned, and deuterium isotope effects...
6.
Le H, Phan T, Nguyen T, Nguyen T, Tran C, Hansen P, et al.
Nat Prod Res
. 2022 Jun;
37(21):3580-3587.
PMID: 35767319
(Vietnamese ginseng, Ngoc Linh ginseng) is an endemic species of Vietnam. From the methanol extract of the leaves of , five compounds (-) were isolated, including one new sesquiterpene lactone...
7.
Hansen P
Molecules
. 2022 Apr;
27(8).
PMID: 35458603
This review is giving a short introduction to the techniques used to investigate isotope effects on NMR chemical shifts. The review is discussing how isotope effects on chemical shifts can...
8.
Pietrzak M, Buczynska J, Duus F, Waluk J, Hansen P
RSC Adv
. 2022 Apr;
12(2):681-689.
PMID: 35425142
The photochemistry of a cyclic β-thioxoketone (2-methyl-1-(2-thioxycyclohexyl)propan-1-one (MTPO)) is investigated by NMR, UV, and IR experiments supported by DFT calculations. MTPO exists as a tautomeric mixture of an enol and...
9.
Hansen P, Vakili M, Kamounah F, Spanget-Larsen J
Molecules
. 2021 Dec;
26(24).
PMID: 34946735
The vibrational NH stretching transitions in secondary amines with intramolecular NH···O hydrogen bonds were investigated by experimental and theoretical methods, considering a large number of compounds and covering a wide...
10.
Hansen P
Pharmaceuticals (Basel)
. 2021 Nov;
14(11).
PMID: 34832971
The paper briefly summarizes methods to determine the structure of β-diketones with emphasis on NMR methods. Density functional calculations are also briefly treated. Emphasis is on the tautomeric equilibria of...