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

doi:10.1016/j.phytol.2012.02.003

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

Kemi

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

Abstract

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.

Originalsprog	Engelsk
Tidsskrift	Phytochemistry Letters
Vol/bind	5
Udgave nummer	2
Sider (fra-til)	287-291
ISSN	1874-3900
DOI	https://doi.org/10.1016/j.phytol.2012.02.003
Status	Udgivet - 2012

Emneord

DFT calculations
chromanone acid
structure elucidation

Link til dokument

10.1016/j.phytol.2012.02.003

Citer dette

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abstract = "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.",

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author = "Dieu, {Ly Ha} and Hansen, {Poul Erik} and Fritz Duus and Pham, {Hung D.} and Nguyen, {Lien-Hoa D.}",

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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

SN - 1874-3900

VL - 5

SP - 287

EP - 291

JO - Phytochemistry Letters

JF - Phytochemistry Letters

IS - 2

ER -