30-Norfriedelane triterpenes from the stem bark ofCaloncoba glauca

Rosa M. Giner-Pons; Alexander I. Gray; Catherine Lavaud; Georges Massiot; Simon Gibbons; Peter G. Waterman

doi:10.1016/0031-9422(91)83041-I

30-Norfriedelane triterpenes from the stem bark ofCaloncoba glauca

Rosa M. Giner-Pons, Alexander I. Gray, Catherine Lavaud, Georges Massiot, Simon Gibbons, Peter G. Waterman

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

The stem bark ofCaloncoba glauca has yielded three friedelane triterpenes of which two are characterized by the loss of C-30 and the presence of a C-27, C-15 lactone. They were identified, with considerable use of long-range CH coupling studies, as the known compound trichadonic acid (3-oxofriedelan-27-oic acid) and two new 30-norfriedelane derivatives, 3,27-dioxo-30-norfriedelan-20(29)-en-27,15α-lactone (caloncobalactone) and 3,27-dioxo-21β-hydroxy-30-norfriedelan-20(29)-en-17,15α-lactone (21β-hydroxycaloncoba lactone).

Original language	English
Pages (from-to)	223-225
Number of pages	3
Journal	Phytochemistry
Volume	31
Issue number	1
DOIs	https://doi.org/10.1016/0031-9422(91)83041-I
Publication status	Published - Jan 1992

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10.1016/0031-9422(91)83041-I

https://linkinghub.elsevier.com/retrieve/pii/003194229183041I

Cite this

@article{6736e44fc348472bb8c90c4fcf678c6e,

title = "30-Norfriedelane triterpenes from the stem bark ofCaloncoba glauca",

abstract = "The stem bark ofCaloncoba glauca has yielded three friedelane triterpenes of which two are characterized by the loss of C-30 and the presence of a C-27, C-15 lactone. They were identified, with considerable use of long-range CH coupling studies, as the known compound trichadonic acid (3-oxofriedelan-27-oic acid) and two new 30-norfriedelane derivatives, 3,27-dioxo-30-norfriedelan-20(29)-en-27,15α-lactone (caloncobalactone) and 3,27-dioxo-21β-hydroxy-30-norfriedelan-20(29)-en-17,15α-lactone (21β-hydroxycaloncoba lactone).",

author = "Giner-Pons, {Rosa M.} and Gray, {Alexander I.} and Catherine Lavaud and Georges Massiot and Simon Gibbons and Waterman, {Peter G.}",

year = "1992",

month = jan,

doi = "10.1016/0031-9422(91)83041-I",

language = "English",

volume = "31",

pages = "223--225",

journal = "Phytochemistry",

issn = "0031-9422",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - 30-Norfriedelane triterpenes from the stem bark ofCaloncoba glauca

AU - Giner-Pons, Rosa M.

AU - Gray, Alexander I.

AU - Lavaud, Catherine

AU - Massiot, Georges

AU - Gibbons, Simon

AU - Waterman, Peter G.

PY - 1992/1

Y1 - 1992/1

N2 - The stem bark ofCaloncoba glauca has yielded three friedelane triterpenes of which two are characterized by the loss of C-30 and the presence of a C-27, C-15 lactone. They were identified, with considerable use of long-range CH coupling studies, as the known compound trichadonic acid (3-oxofriedelan-27-oic acid) and two new 30-norfriedelane derivatives, 3,27-dioxo-30-norfriedelan-20(29)-en-27,15α-lactone (caloncobalactone) and 3,27-dioxo-21β-hydroxy-30-norfriedelan-20(29)-en-17,15α-lactone (21β-hydroxycaloncoba lactone).

AB - The stem bark ofCaloncoba glauca has yielded three friedelane triterpenes of which two are characterized by the loss of C-30 and the presence of a C-27, C-15 lactone. They were identified, with considerable use of long-range CH coupling studies, as the known compound trichadonic acid (3-oxofriedelan-27-oic acid) and two new 30-norfriedelane derivatives, 3,27-dioxo-30-norfriedelan-20(29)-en-27,15α-lactone (caloncobalactone) and 3,27-dioxo-21β-hydroxy-30-norfriedelan-20(29)-en-17,15α-lactone (21β-hydroxycaloncoba lactone).

U2 - 10.1016/0031-9422(91)83041-I

DO - 10.1016/0031-9422(91)83041-I

M3 - Article

SN - 0031-9422

VL - 31

SP - 223

EP - 225

JO - Phytochemistry

JF - Phytochemistry

IS - 1

ER -