A new prenylated xanthone from the stem bark of Calophyllum lowii
Our detailed study on the chemical constituents of the stem bark of Calophyllum lowii has resulted in the isolation and characterization of one new xanthone calowiium (1) along with three other xanthone derivatives – caloxanthone L (2), β-mangostin (3), and macluraxanthone (4). Several triterpenoi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
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Akademi Sains Malaysia & Confederation of Scientific & Technological Association in Malaysia
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/30246/ http://psasir.upm.edu.my/id/eprint/30246/1/A%20new%20prenylated%20xanthone%20from%20the%20stem%20bark%20of%20Calophyllum%20lowii.pdf |
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| author | Jamaluddin, Nur Amirah Ee, Gwendoline Cheng Lian Teh, S. S. Mah, S. H. Md. Sukari, Mohd. Aspollah |
| author_facet | Jamaluddin, Nur Amirah Ee, Gwendoline Cheng Lian Teh, S. S. Mah, S. H. Md. Sukari, Mohd. Aspollah |
| author_sort | Jamaluddin, Nur Amirah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Our detailed study on the chemical constituents of the stem bark of Calophyllum lowii has resulted in the isolation and characterization of one new xanthone calowiium (1) along with three other xanthone derivatives – caloxanthone L (2),
β-mangostin (3), and macluraxanthone (4). Several triterpenoids and steroids, viz. friedelin (5), stigmasterol (6) and sitosterol (7) were also successfully isolated from this plant. The structures of these components were established by means of spectroscopic analysis –nuclear magnetic resonance (NMR 1D, 2D), UV, FTIR, and mass spectrometry. |
| first_indexed | 2025-11-15T09:05:39Z |
| format | Article |
| id | upm-30246 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T09:05:39Z |
| publishDate | 2013 |
| publisher | Akademi Sains Malaysia & Confederation of Scientific & Technological Association in Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-302462015-10-05T07:51:58Z http://psasir.upm.edu.my/id/eprint/30246/ A new prenylated xanthone from the stem bark of Calophyllum lowii Jamaluddin, Nur Amirah Ee, Gwendoline Cheng Lian Teh, S. S. Mah, S. H. Md. Sukari, Mohd. Aspollah Our detailed study on the chemical constituents of the stem bark of Calophyllum lowii has resulted in the isolation and characterization of one new xanthone calowiium (1) along with three other xanthone derivatives – caloxanthone L (2), β-mangostin (3), and macluraxanthone (4). Several triterpenoids and steroids, viz. friedelin (5), stigmasterol (6) and sitosterol (7) were also successfully isolated from this plant. The structures of these components were established by means of spectroscopic analysis –nuclear magnetic resonance (NMR 1D, 2D), UV, FTIR, and mass spectrometry. Akademi Sains Malaysia & Confederation of Scientific & Technological Association in Malaysia 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30246/1/A%20new%20prenylated%20xanthone%20from%20the%20stem%20bark%20of%20Calophyllum%20lowii.pdf Jamaluddin, Nur Amirah and Ee, Gwendoline Cheng Lian and Teh, S. S. and Mah, S. H. and Md. Sukari, Mohd. Aspollah (2013) A new prenylated xanthone from the stem bark of Calophyllum lowii. Journal of Science and Technology in the Tropics, 9 (2). pp. 143-147. ISSN 1823-5034 English |
| spellingShingle | Jamaluddin, Nur Amirah Ee, Gwendoline Cheng Lian Teh, S. S. Mah, S. H. Md. Sukari, Mohd. Aspollah A new prenylated xanthone from the stem bark of Calophyllum lowii |
| title | A new prenylated xanthone from the stem bark of Calophyllum lowii |
| title_full | A new prenylated xanthone from the stem bark of Calophyllum lowii |
| title_fullStr | A new prenylated xanthone from the stem bark of Calophyllum lowii |
| title_full_unstemmed | A new prenylated xanthone from the stem bark of Calophyllum lowii |
| title_short | A new prenylated xanthone from the stem bark of Calophyllum lowii |
| title_sort | new prenylated xanthone from the stem bark of calophyllum lowii |
| url | http://psasir.upm.edu.my/id/eprint/30246/ http://psasir.upm.edu.my/id/eprint/30246/1/A%20new%20prenylated%20xanthone%20from%20the%20stem%20bark%20of%20Calophyllum%20lowii.pdf |