Xanthones and xanthone derivatives from Garcinia nitida
A detiled chemical study on the stem bark extracts of Garcinia nitida has led to the isolation of five xanthones and two triterpenoids. They are 1,3,7-trihydroxy-2,4-bis(3-menthylbut-2-enyl)xanthone (1) osajaxanthore, (2) inophylin B, (3) 3-isomangostin, (4) rubraxanthone, (5) stigmasterol and stigm...
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| Format: | Article |
| Language: | English |
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Universiti Putra Malaysia Press
2007
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| Online Access: | http://psasir.upm.edu.my/id/eprint/11563/ http://psasir.upm.edu.my/id/eprint/11563/1/Xanthones%20and%20Xanthone%20Derivatives%20from%20Garcinia%20nitida.pdf |
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| author | Ee, Gwendoline Cheng Lian Lim, Che Kiong Yap, Taufiq Yun Hin Md. Sukari, Mohd Aspollah Rahmani, Mawardi |
| author_facet | Ee, Gwendoline Cheng Lian Lim, Che Kiong Yap, Taufiq Yun Hin Md. Sukari, Mohd Aspollah Rahmani, Mawardi |
| author_sort | Ee, Gwendoline Cheng Lian |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A detiled chemical study on the stem bark extracts of Garcinia nitida has led to the isolation of five xanthones and two triterpenoids. They are 1,3,7-trihydroxy-2,4-bis(3-menthylbut-2-enyl)xanthone (1) osajaxanthore, (2) inophylin B, (3) 3-isomangostin, (4) rubraxanthone, (5) stigmasterol and stigmasterol acetate. The structures of these compounds were established using mainly 1D and 2D NMR spectrocopy. Acetylation of rubraxanthone resulted in two new compounds, rubraxanthone monoacetate (6) and rubraxanthone diacetate (7) with rubraxanthone triacetate (8). |
| first_indexed | 2025-11-15T07:46:25Z |
| format | Article |
| id | upm-11563 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:46:25Z |
| publishDate | 2007 |
| publisher | Universiti Putra Malaysia Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-115632016-11-28T04:46:32Z http://psasir.upm.edu.my/id/eprint/11563/ Xanthones and xanthone derivatives from Garcinia nitida Ee, Gwendoline Cheng Lian Lim, Che Kiong Yap, Taufiq Yun Hin Md. Sukari, Mohd Aspollah Rahmani, Mawardi A detiled chemical study on the stem bark extracts of Garcinia nitida has led to the isolation of five xanthones and two triterpenoids. They are 1,3,7-trihydroxy-2,4-bis(3-menthylbut-2-enyl)xanthone (1) osajaxanthore, (2) inophylin B, (3) 3-isomangostin, (4) rubraxanthone, (5) stigmasterol and stigmasterol acetate. The structures of these compounds were established using mainly 1D and 2D NMR spectrocopy. Acetylation of rubraxanthone resulted in two new compounds, rubraxanthone monoacetate (6) and rubraxanthone diacetate (7) with rubraxanthone triacetate (8). Universiti Putra Malaysia Press 2007 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/11563/1/Xanthones%20and%20Xanthone%20Derivatives%20from%20Garcinia%20nitida.pdf Ee, Gwendoline Cheng Lian and Lim, Che Kiong and Yap, Taufiq Yun Hin and Md. Sukari, Mohd Aspollah and Rahmani, Mawardi (2007) Xanthones and xanthone derivatives from Garcinia nitida. Pertanika Journal of Science & Technology, 15 (1). pp. 77-83. ISSN 0128-7680; ESSN: 2231-8526 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JST%20Vol.%2015%20(1)%20Jan.%202007/11%20PAGE%2077-83.pdf |
| spellingShingle | Ee, Gwendoline Cheng Lian Lim, Che Kiong Yap, Taufiq Yun Hin Md. Sukari, Mohd Aspollah Rahmani, Mawardi Xanthones and xanthone derivatives from Garcinia nitida |
| title | Xanthones and xanthone derivatives from Garcinia nitida |
| title_full | Xanthones and xanthone derivatives from Garcinia nitida |
| title_fullStr | Xanthones and xanthone derivatives from Garcinia nitida |
| title_full_unstemmed | Xanthones and xanthone derivatives from Garcinia nitida |
| title_short | Xanthones and xanthone derivatives from Garcinia nitida |
| title_sort | xanthones and xanthone derivatives from garcinia nitida |
| url | http://psasir.upm.edu.my/id/eprint/11563/ http://psasir.upm.edu.my/id/eprint/11563/ http://psasir.upm.edu.my/id/eprint/11563/1/Xanthones%20and%20Xanthone%20Derivatives%20from%20Garcinia%20nitida.pdf |