Journal
NATURAL PRODUCT RESEARCH
Volume 28, Issue 7, Pages 473-476Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2013.879134
Keywords
brine shrimp lethality; Menella kanisa; menazepine A; diketopiperazine
Categories
Funding
- National Natural Science Foundation of China [31100260, 81260480]
- Knowledge Innovation Program of Chinese Academy of Sciences [KSCX2-EW-J-28]
- Program of Guangzhou City [12C14061559]
- Natural Science Foundation of Guangxi [2010GXNSFE013001, 2011GXNSFE018002, 2011GXNSFB018035, 2011GXNSFA018108, 2012GXN-SFAA053160, 2012GXNSFEA053001]
- Key Project of Science and Technology Department of Guangxi [1114011-7]
- SIDSSE [2013YD73]
- Sanya [2013YD73]
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Chemical investigation on the gorgonian Menella kanisa collected from Beibu Gulf led to the isolation of a new diketopiperazine, named menazepine A (1), as well as three known diketopiperazines, namely cyclo(4-hydroxyprolylleucyl) (2), cyclo(Pro-Leu) (3) and cyclo(4-hydroxyprolylphenylalanyl) (4). The structure of the new diketopiperazine was elucidated on the basis of extensive spectroscopic analysis and by comparing the data with those of related metabolites. Compounds 1-4 were also evaluated for brine shrimp lethality.
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