Results 161 to 170 of about 9,533 (193)

Limonoids from Khaya ivorensis

Phytochemistry, 2009
Four limonoids, 1-O-deacetyl-6-deoxykhayanolide E (1), 1-O-deacetyl-2 alpha-hydroxykhayanolide E (2), 3-acetyl-khayalactone (3), 11 alpha-acetoxy-2 alpha-hydroxy-6-deoxy-destigloylswietenine acetate (4), along with 12 known limonoids, were isolated from the stems of Khaya ivorensis.
Bo, Zhang   +5 more
openaire   +2 more sources

limonoids from Khaya senegalensis

Phytochemistry, 1998
A new limonoid was isolated from the bark of Khaya senegalensis and identified as 2,6-dihydroxyfissinolide. The assignments of some signals in the (13)C NMR spectrum of fissinolide have been reversed and the signals of the (1)H NMR spectrum of methyl 3beta-acetoxy-6-hydroxy-1-oxomeliac-14-enoate have been assigned.
Khalid, Sami   +5 more
openaire   +2 more sources

Tetranortriterpenoids from Khaya senegalensis

Phytochemistry, 1998
Preparative HPLC of an ethanol extract of seeds of Khaya senegalensis yielded three new tetranortriterpenoids of the mexicanolide type. These compounds were identified as 2-hydroxymexicanolide, 6-deoxydestigloylswietenine and 2,3-dihydroxy-3-deoxymexicanolide.
T.R. Govindachari, G.N.Krishna Kumari
openaire   +1 more source

Sensitization to Khaya anthotheca

Nature, 1965
AFRICAN mahogany is a timber which has been used extensively in the furniture trade since the early part of the century. It is derived exclusively from the Khaya genus and commercial supplies consist principally of K. ivorensis and K. anthotheca with smaller amounts of K. grandifoliola1.
J. W. W. MORGAN, D. S. WILKINSON
openaire   +1 more source

Neomassaria khayae sp. nov., a novel pleosporalean species on Khaya senegalensis from Guangdong Province, China

Phytotaxa, 2023
Khaya senegalensis is a tropical plant native to Africa and grown as an ornamental plant in Southern China. During our sample collection in Guangdong Province, China, a saprobic Dothideomycetes was collected from a dead stem of K. senegalensis. The collection was identified as a neomassaria-like species based on the morphology.
YUNHUI YANG   +4 more
openaire   +1 more source

Two new compounds fromKhaya senegalensis

Journal of Asian Natural Products Research, 2013
Two new compounds, khayseneganin I (1) and 2α,3α,16β-trihydroxy-20-acetoxy-20(R)-pregnane (2), along with six known compounds, 2α,3α,20-trihydroxy-16β-acetoxy-20(R)-pregnane (3), 2α,3β-dihydroxypregnan-16-one-2β,19-hemiketal (4), (+)-catechin (5), ivorenolide A (6), luteolin-7-O-α-l-rhamnoside (7), and ( - )-5'-methoxy-isolariciresinol-2a-O-β-d ...
Chun-Mao, Yuan   +10 more
openaire   +2 more sources

Limonoid Extractives from Khaya ivorensis

Journal of the Chemical Society C: Organic, 1970
The timber of Khaya ivorensis contains khivorin, small amounts of swietenolide esters and other limonoids; the seed contains mainly methyl angolensate, and the root bark contains a complex mixture of limonoids. One of the new compounds from the timber, methyl ivorensate, has been found to contain a ring A lactone system, similar to that in nomilin, and
E. K. Adesogan, D. A. H. Taylor
openaire   +1 more source

Rearranged limonoids from Khaya senegalensis

Phytochemistry, 1996
Abstract The stems of Khaya senegalensis yielded three limonoids which appear to be novel. These compounds were identified on the basis of spectroscopic analysis as methyl 1α,6,8α,14β,30β-pentahydroxy-3-oxo-[3.3.1 10,2 .1 1,4 ]-tricyclomeliac-7-oate; methyl 1α,2β,3α,6,8α,14β-hexahydroxy-[4.2.1 10,30 .1 1,4 ]-tricyclomeliac-7-oate and methyl 1α ...
Lis R.V. Olmo   +7 more
openaire   +1 more source

Limonoids and Triterpenoids from Khaya senegalensis

Journal of Natural Products, 2010
Seven new limonoids (1-7), named khayalenoids C-I, three new triterpenoids (8-10), named senegalenes A-C, and eight known limonoids have been isolated from stems of Khaya senegalensis. The structures of these compounds were elucidated on the basis of spectroscopic analyses.
Tao, Yuan   +3 more
openaire   +2 more sources

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