Novel antifeeding limonoids from Dysoxylum hainanense
Seven novel limonoids were isolated from the bark of Dysoxylum hainanense Merr, of which four were limonoid acids {dysoxylumic acids A ( 1 ), B ( 2 ), C ( 3 ), D ( 5 )}, and three others {dysoxylumolides A ( 4 ), B ( 6 ), C ( 7 )}. Their structures were established by extensive NMR experiments. In c...
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| Published in | Tetrahedron Vol. 58; no. 39; pp. 7797 - 7804 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
OXFORD
Elsevier Ltd
23.09.2002
Elsevier |
| Subjects | |
| Online Access | Get full text |
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| Summary: | Seven novel limonoids were isolated from the bark of
Dysoxylum hainanense Merr, of which four were limonoid acids {dysoxylumic acids A (
1
), B (
2
), C (
3
), D (
5
)}, and three others {dysoxylumolides A (
4
), B (
6
), C (
7
)}. Their structures were established by extensive NMR experiments. In compounds (
1
)–(
6
), C-16 was an oxymethine group, which is rare in limonoids. Dysoxylumic acids A–C as well as known compounds dysoxylumins A–C exhibited significant antifeeding activity against
Pieris rapae L, while dysoxylumolides A–C and dysoxylumic acid D showed moderate activity.
Seven novel limonoids were isolated from the bark of
Dysoxylum hainanense Merr. All of them exhibited antifeeding activity against
Pieris rapae L. |
|---|---|
| ISSN: | 0040-4020 1464-5416 |
| DOI: | 10.1016/S0040-4020(02)00944-4 |