Newbouldiaquinone and Newbouldiamide: A New Naphthoquinone-Anthraquinone Coupled Pigment and a New Ceramide from Newbouldia laevis
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- Eyong Kenneth Oben
- Department of Organic Chemistry, Yaounde University I
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- Krohn Karsten
- Department of Chemistry, University of Paderborn
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- Hussain Hidayat
- Department of Chemistry, University of Paderborn
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- Folefoc Gabriel Ngosong
- Department of Organic Chemistry, Yaounde University I
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- Nkengfack Augustin Ephram
- Department of Organic Chemistry, Yaounde University I
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- Schulz Barbara
- Institute of Microbiology, Technical University of Braunschweig
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- Hu Qunxiu
- Institute of Microbiology, Technical University of Braunschweig
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Abstract
Newbouldiaquinone (1), a new naphthoquinone–anthraquinone coupled pigment and a new ceramide named newbouldiamide (2), have been isolated from Newbouldia laevis, besides the known compounds lapachol (3), canthic acid, oleanolic acid, 2-methyl-9,10-anthracenedione, 2-acetylfuro-1,4-naphthoquinone, 2,3-dimethoxy-1,4-benzoquinone, 2-(4-hydroxyphenyl)ethyl triacontanoate, β-sitosterol and β-sitosterol glucopyranoside. The structure elucidations of the isolated new compounds were performed on the basis of spectroscopic and chemical evidence. Preliminary studies showed that 1 is moderately antibacterial against Gram-positive Bacillus megaterium and that 3 has moderate herbicidal and antibacterial activities.
Journal
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- Chemical and Pharmaceutical Bulletin
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Chemical and Pharmaceutical Bulletin 53 (6), 616-619, 2005
The Pharmaceutical Society of Japan
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Details 詳細情報について
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- CRID
- 1390282679145797760
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- NII Article ID
- 10016654065
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- NII Book ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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- NDL BIB ID
- 7318340
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- PubMed
- 15930769
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed