From freshly fertilimi eggs of the sea hare Aplpiu kitrodni. col-Icctod in Fukuoka Prefecture. the new laxativc lipid, thc diacylglyceryl cther mixturc ( I ) and cholcstcryl estcr mixture (2). in addition to thc thrcc nuclcosidcs 4. 5. and 6. havc becn isolated. Thc structurcs of I and 2 werc elucid
Studies on the constituents of marine opisthobranchia, IV. Two new polyhalogenated monoterpenes from the sea hareAplysia kurodai
โ Scribed by Miyamoto, Tomofumi ;Higuchi, Ryuichi ;Marubayashi, Nobuhiro ;Komori, Tetsuya
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 281 KB
- Volume
- 1988
- Category
- Article
- ISSN
- 0947-3440
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โฆ Synopsis
A new cyclic moooterpene, aplysiateerpenoid A (I), and a new acyclic monoterpene, apl ysiateqxnoid B (2), have been isolated from the marine mollusk, Aplysiu kurodai (Aplysiidae), and their stmcturcs wcre dctermined by chemical, spectral. and X-ray structural investigations.
As described in the preceding paper') two new isoprenoids, aplykurodin A and B, were isolated from the body of the sea hare, Aplysia kurodai, and characterized. In continuation of the study, the terpenoid constituents of the body were surveyed, and we now wish to report the isolation and structure of the two less polar compounds, aplysiaterpenoid A (1) and B (2), and their characterization as new halogenated monoterpenes. Scheme 1 A p l y s i a k u r o d a a (13 bodies, 10 kg) -, Body wall Midgut gland MeOH extract 192.0 gi
๐ SIMILAR VOLUMES
Chromatography over silica gel (164 g ) (CHC1 /methanol, 4 : l to 1:4) From the albumen glands of the sea hare Aplyssia juliuna. collected in Kumamoto Prefccturc, a mixture of cholesteryl esters (1) and two 5,8u-epidioxysterols 5 and 8 have bccn isolatcd. Acid-catalyzed methanolysis of 1 aflordcd f