Two new xanthones from Calophyllum nodusum (Guttiferae)
The air-dried powdered stem bark of Calophyllum nodusum (Guttiferea) collected from Sandakan (Sabah, Malaysia), was extracted sequentially with hexane, chloroform and methanol. The solvents were removed by rotary evaporator to give dark viscous extracts. Detailed and repeated chromatographic separat...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/77961/1/77961.pdf |
| _version_ | 1825950942096261120 |
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| author | Mad Nasir, Nadiah Rahmani, Mawardi Shaari, Khozirah Ee, Gwendoline Cheng Lian Go, Rusea Kassim, Nur Kartinee Mohamad, Siti Noor Kamilah Che Jamil, Mohamad Johadi Iskandar |
| author_facet | Mad Nasir, Nadiah Rahmani, Mawardi Shaari, Khozirah Ee, Gwendoline Cheng Lian Go, Rusea Kassim, Nur Kartinee Mohamad, Siti Noor Kamilah Che Jamil, Mohamad Johadi Iskandar |
| author_sort | Mad Nasir, Nadiah |
| collection | UPM |
| description | The air-dried powdered stem bark of Calophyllum nodusum (Guttiferea) collected from Sandakan (Sabah, Malaysia), was extracted sequentially with hexane, chloroform and methanol. The solvents were removed by rotary evaporator to give dark viscous extracts. Detailed and repeated chromatographic separation of the extracts lead to isolation of two new xanthones, identified as nodusuxanthone (1a) and trapezifolixanthone A (2). Other common terpenoids such as betulinic acid, lupeol, stigmasterol and friedelin were also isolated from the extracts and identified. The structures of the compounds were established by detailed spectral analysis and comparison with previously reported data. |
| first_indexed | 2024-03-06T10:22:19Z |
| format | Article |
| id | upm.eprints-77961 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:22:19Z |
| publishDate | 2011 |
| publisher | MDPI |
| record_format | dspace |
| spelling | upm.eprints-779612020-05-04T17:52:37Z http://psasir.upm.edu.my/id/eprint/77961/ Two new xanthones from Calophyllum nodusum (Guttiferae) Mad Nasir, Nadiah Rahmani, Mawardi Shaari, Khozirah Ee, Gwendoline Cheng Lian Go, Rusea Kassim, Nur Kartinee Mohamad, Siti Noor Kamilah Che Jamil, Mohamad Johadi Iskandar The air-dried powdered stem bark of Calophyllum nodusum (Guttiferea) collected from Sandakan (Sabah, Malaysia), was extracted sequentially with hexane, chloroform and methanol. The solvents were removed by rotary evaporator to give dark viscous extracts. Detailed and repeated chromatographic separation of the extracts lead to isolation of two new xanthones, identified as nodusuxanthone (1a) and trapezifolixanthone A (2). Other common terpenoids such as betulinic acid, lupeol, stigmasterol and friedelin were also isolated from the extracts and identified. The structures of the compounds were established by detailed spectral analysis and comparison with previously reported data. MDPI 2011 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/77961/1/77961.pdf Mad Nasir, Nadiah and Rahmani, Mawardi and Shaari, Khozirah and Ee, Gwendoline Cheng Lian and Go, Rusea and Kassim, Nur Kartinee and Mohamad, Siti Noor Kamilah and Che Jamil, Mohamad Johadi Iskandar (2011) Two new xanthones from Calophyllum nodusum (Guttiferae). Molecules, 16 (11). pp. 8973-8980. ISSN 1420-3049 https://www.mdpi.com/1420-3049/16/11/8973 10.3390/molecules16118973 |
| spellingShingle | Mad Nasir, Nadiah Rahmani, Mawardi Shaari, Khozirah Ee, Gwendoline Cheng Lian Go, Rusea Kassim, Nur Kartinee Mohamad, Siti Noor Kamilah Che Jamil, Mohamad Johadi Iskandar Two new xanthones from Calophyllum nodusum (Guttiferae) |
| title | Two new xanthones from Calophyllum nodusum (Guttiferae) |
| title_full | Two new xanthones from Calophyllum nodusum (Guttiferae) |
| title_fullStr | Two new xanthones from Calophyllum nodusum (Guttiferae) |
| title_full_unstemmed | Two new xanthones from Calophyllum nodusum (Guttiferae) |
| title_short | Two new xanthones from Calophyllum nodusum (Guttiferae) |
| title_sort | two new xanthones from calophyllum nodusum guttiferae |
| url | http://psasir.upm.edu.my/id/eprint/77961/1/77961.pdf |
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