Journal
CHEMISTRY OF NATURAL COMPOUNDS
Volume 48, Issue 4, Pages 622-624Publisher
SPRINGER
DOI: 10.1007/s10600-012-0327-9
Keywords
Symphyocladia latiuscula; bromophenol; diketopiperazine
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Funding
- Fundamental Research Funds for the Central Universities
- Research Fund for the Doctoral Program of Higher Education of China [200804911002]
- Scientific Fund of China University of Geosciences [51900961135]
- National Natural Science Foundation of China [30901849]
- Science and Technology Planning Project of Zhejiang Province, China [2009C33004]
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2-(2,3,6-Tribromo-4,5-dihydroxybenzyl)hexahydropyrrolo[1,2-a]pyrazine-1,4-dione (1), a new bromophenol C-N coupled with diketopiperazine, was isolated from the ethanol extract of marine red alga Symphyocladia latiuscula. Its structure was elucidated by spectroscopic analysis, including high-resolution mass spectroscopy and 1 and 2-dimensional NMR techniques. The absolute configuration of 1 was assigned using Marfey's method on its acid hydrolysate.
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