A new chromanone acid from the bark of Calophyllum dryobalanoides

Ly Ha Dieu, Poul Erik Hansen, Fritz Duus, Hung D. Pham, Lien-Hoa D. Nguyen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

A new chromanone acid, calodryobalanoic acid, along with six known compounds, apetalic acid, isoblancoic acid, lupeol, 1-hydroxy-2-methoxyxanthone, 1,7-dihydroxy-3-methoxyxanthone, and 5,7,4′-trihydroxyflavanone, was isolated from the bark of Calophyllum dryobalanoides collected in Vietnam. The structure of the new compound was elucidated using mainly 1-D and 2-D NMR techniques (1H and 13C NMR, HSQC, HMBC, COSY, and NOESY) and IR spectroscopy. The stereochemistry was determined on the basis of NMR results and DFT calculations.
OriginalsprogEngelsk
TidsskriftPhytochemistry Letters
Vol/bind5
Udgave nummer2
Sider (fra-til)287-291
ISSN1874-3900
DOI
StatusUdgivet - 2012

Emneord

  • DFT calculations
  • chromanone acid
  • structure elucidation

Citer dette

Dieu, Ly Ha ; Hansen, Poul Erik ; Duus, Fritz ; Pham, Hung D. ; Nguyen, Lien-Hoa D. / A new chromanone acid from the bark of Calophyllum dryobalanoides. I: Phytochemistry Letters. 2012 ; Bind 5, Nr. 2. s. 287-291.
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A new chromanone acid from the bark of Calophyllum dryobalanoides. / Dieu, Ly Ha; Hansen, Poul Erik; Duus, Fritz; Pham, Hung D.; Nguyen, Lien-Hoa D.

I: Phytochemistry Letters, Bind 5, Nr. 2, 2012, s. 287-291.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - A new chromanone acid from the bark of Calophyllum dryobalanoides

AU - Dieu, Ly Ha

AU - Hansen, Poul Erik

AU - Duus, Fritz

AU - Pham, Hung D.

AU - Nguyen, Lien-Hoa D.

PY - 2012

Y1 - 2012

N2 - A new chromanone acid, calodryobalanoic acid, along with six known compounds, apetalic acid, isoblancoic acid, lupeol, 1-hydroxy-2-methoxyxanthone, 1,7-dihydroxy-3-methoxyxanthone, and 5,7,4′-trihydroxyflavanone, was isolated from the bark of Calophyllum dryobalanoides collected in Vietnam. The structure of the new compound was elucidated using mainly 1-D and 2-D NMR techniques (1H and 13C NMR, HSQC, HMBC, COSY, and NOESY) and IR spectroscopy. The stereochemistry was determined on the basis of NMR results and DFT calculations.

AB - A new chromanone acid, calodryobalanoic acid, along with six known compounds, apetalic acid, isoblancoic acid, lupeol, 1-hydroxy-2-methoxyxanthone, 1,7-dihydroxy-3-methoxyxanthone, and 5,7,4′-trihydroxyflavanone, was isolated from the bark of Calophyllum dryobalanoides collected in Vietnam. The structure of the new compound was elucidated using mainly 1-D and 2-D NMR techniques (1H and 13C NMR, HSQC, HMBC, COSY, and NOESY) and IR spectroscopy. The stereochemistry was determined on the basis of NMR results and DFT calculations.

KW - DFT calculations

KW - chromanone acid

KW - structure elucidation

U2 - 10.1016/j.phytol.2012.02.003

DO - 10.1016/j.phytol.2012.02.003

M3 - Journal article

VL - 5

SP - 287

EP - 291

JO - Phytochemistry Letters

JF - Phytochemistry Letters

SN - 1874-3900

IS - 2

ER -