期刊
ORGANIC LETTERS
卷 16, 期 22, 页码 5850-5853出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol502700h
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资金
- KAKENHI [22404006]
- JSPS
- NZ Ministry for Business Innovation and Employment [CAWX0804, CAWX1108]
- Grants-in-Aid for Scientific Research [22404006] Funding Source: KAKEN
- New Zealand Ministry of Business, Innovation & Employment (MBIE) [CAWX0804, CAWX1108] Funding Source: New Zealand Ministry of Business, Innovation & Employment (MBIE)
The isolation and structural determination of new marine ladder-frame polyethers, brevisulcatic acids-1 (1) and -4 (2) are reported. Brevisulcatic acids were isolated from the dinoflagellate Karenia brevisulcata, which was identified as the causative species of a major red tide event in New Zealand in 1998. The ether ring composition and a beta-hydroxy, gamma-methylene valeric acid side chain of 1 and 2 are common, but 2 has a gamma-lactone as the 5-membered A-ring while 1 is the seco acid analogue. Compound 2 has structural and bioactivity similarities to brevetoxin A.
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