Nat Prod Sci.
2015 Jun;21(2):76-81. 10.0000/nps.2015.21.2.76.
Phenolic Compounds and Triterpenes from the Barks of Diospyros burmanica
- Affiliations
-
- 1College of Pharmacy and Research Institute of Pharmaceutical Science, Seoul National University, Seoul, Korea.
- 2Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea.
- 3Department of Life Science, Hallym University, Chuncheon 200-702, Korea.
- 4Popa Mountain Park, Forest Department, Kyaukpadaung Township, Mandalay Division, Myanmar.
- 5Department of Forest Sciences, Seoul National University, Seoul 151-921, Korea.
- 6College of Pharmacy, The Catholic University of Korea, Bucheon 420-743, Korea. kdyoon@catholic.ac.kr
- KMID: 2312876
- DOI: http://doi.org/10.0000/nps.2015.21.2.76
Abstract
- Diospyros burmanica Kurz. is an evergreen deciduous tree distributed in Mandalay of Myanmar, which belongs to the family of Ebenaceae. In Myanmar, it has been used to treat diarrhea, diabetes, diabetes and also as lumbers. In this study, seven flavonoids (1 - 7), a phenolic compound (8), and five triterpenes (9 - 13) were isolated from the barks of D. burmanica and their chemical structures were elucidated. Isolates were identified to be (+)-catechin (1), (+)-catechin 3-O-alpha-L-rhamnopyranoside (2), (+)-catechin 3-O-gallate (3), (-)-epicatechin (4), (-)-epicatechin 3-O-gallate (5), (+)-afzelechin 3-O-alpha-L-rhamnopyranoside (6), (+)-2,3-trans-dihydrokaempferol 3-O-alpha-L-rhamnopyranoside (7), methyl gallate (8), lupeol (9), methyl lup-20(29)-en-3-on-28-oate (10), beta-amyrin (11), alpha-amyrin (12), 3beta-hydroxy-D:B-friedo-olean-5-ene (13) through MS, 1H NMR and 13C NMR spectroscopic evidences.
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