New coumarin and dihydrocinnamic acid derivatives from two Malaysian populations of Micromelum minutum
Three novel compounds, two compounds and a dihydrocinnamic acid, have been isolated from two collections of Micromelum minutum and identified by means of NMR spectroscopy. A sample collected from Pahang gave the typical coumarin micromelin and a new dihydrocinnamic acid derivative of micromelin whic...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Elsevier Science
1994
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/56240/ http://psasir.upm.edu.my/id/eprint/56240/1/New%20coumarin%20and%20dihydrocinnamic%20acid%20derivatives%20from%20two%20Malaysian%20populations%20of%20Micromelum%20minutum.pdf http://psasir.upm.edu.my/id/eprint/56240/7/1-s2.0-003194229485100X-main.pdf |
| _version_ | 1848853026967650304 |
|---|---|
| author | Rahmani, Mawardi Yap, Taufiq Yun Hin Mohd Ismail, Hazar Bebe Md. Sukari, Mohd Aspollah Waterman, Peter G. |
| author_facet | Rahmani, Mawardi Yap, Taufiq Yun Hin Mohd Ismail, Hazar Bebe Md. Sukari, Mohd Aspollah Waterman, Peter G. |
| author_sort | Rahmani, Mawardi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Three novel compounds, two compounds and a dihydrocinnamic acid, have been isolated from two collections of Micromelum minutum and identified by means of NMR spectroscopy. A sample collected from Pahang gave the typical coumarin micromelin and a new dihydrocinnamic acid derivative of micromelin which was identified as 1,2-seco-dihydromicromelin. The second sample, collected from Kelantan, gave two new tetracyclic coumarins, microminutinin and 6-methoxymicrominutinin, which possess a fused bifurano system that appears to be derived by cyclization of a 7-oxygenated-8-(1,2-dimethyl)propylcoumarin precursor. The structure of microminutinin is revised from that proposed in a previous paper. |
| first_indexed | 2025-11-15T10:47:26Z |
| format | Article |
| id | upm-56240 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T10:47:26Z |
| publishDate | 1994 |
| publisher | Elsevier Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-562402024-08-05T03:00:14Z http://psasir.upm.edu.my/id/eprint/56240/ New coumarin and dihydrocinnamic acid derivatives from two Malaysian populations of Micromelum minutum Rahmani, Mawardi Yap, Taufiq Yun Hin Mohd Ismail, Hazar Bebe Md. Sukari, Mohd Aspollah Waterman, Peter G. Three novel compounds, two compounds and a dihydrocinnamic acid, have been isolated from two collections of Micromelum minutum and identified by means of NMR spectroscopy. A sample collected from Pahang gave the typical coumarin micromelin and a new dihydrocinnamic acid derivative of micromelin which was identified as 1,2-seco-dihydromicromelin. The second sample, collected from Kelantan, gave two new tetracyclic coumarins, microminutinin and 6-methoxymicrominutinin, which possess a fused bifurano system that appears to be derived by cyclization of a 7-oxygenated-8-(1,2-dimethyl)propylcoumarin precursor. The structure of microminutinin is revised from that proposed in a previous paper. Elsevier Science 1994 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/56240/1/New%20coumarin%20and%20dihydrocinnamic%20acid%20derivatives%20from%20two%20Malaysian%20populations%20of%20Micromelum%20minutum.pdf text en http://psasir.upm.edu.my/id/eprint/56240/7/1-s2.0-003194229485100X-main.pdf Rahmani, Mawardi and Yap, Taufiq Yun Hin and Mohd Ismail, Hazar Bebe and Md. Sukari, Mohd Aspollah and Waterman, Peter G. (1994) New coumarin and dihydrocinnamic acid derivatives from two Malaysian populations of Micromelum minutum. Phytochemistry, 37 (2). pp. 561-564. ISSN 0031-9422; ESSN: 1873-3700 http://www.sciencedirect.com/science/article/pii/003194229485100X# 10.1016/0031-9422(94)85100-X |
| spellingShingle | Rahmani, Mawardi Yap, Taufiq Yun Hin Mohd Ismail, Hazar Bebe Md. Sukari, Mohd Aspollah Waterman, Peter G. New coumarin and dihydrocinnamic acid derivatives from two Malaysian populations of Micromelum minutum |
| title | New coumarin and dihydrocinnamic acid derivatives from two Malaysian populations of Micromelum minutum |
| title_full | New coumarin and dihydrocinnamic acid derivatives from two Malaysian populations of Micromelum minutum |
| title_fullStr | New coumarin and dihydrocinnamic acid derivatives from two Malaysian populations of Micromelum minutum |
| title_full_unstemmed | New coumarin and dihydrocinnamic acid derivatives from two Malaysian populations of Micromelum minutum |
| title_short | New coumarin and dihydrocinnamic acid derivatives from two Malaysian populations of Micromelum minutum |
| title_sort | new coumarin and dihydrocinnamic acid derivatives from two malaysian populations of micromelum minutum |
| url | http://psasir.upm.edu.my/id/eprint/56240/ http://psasir.upm.edu.my/id/eprint/56240/ http://psasir.upm.edu.my/id/eprint/56240/ http://psasir.upm.edu.my/id/eprint/56240/1/New%20coumarin%20and%20dihydrocinnamic%20acid%20derivatives%20from%20two%20Malaysian%20populations%20of%20Micromelum%20minutum.pdf http://psasir.upm.edu.my/id/eprint/56240/7/1-s2.0-003194229485100X-main.pdf |