Structures of tobiraxanthins A1, A2, A3, B, C and D, new carotenoids from the seeds of Pittosporum tobira
โ Scribed by Yasuhiro Fujiwara; Keiji Hashimoto; Kiyoshi Manabe; Takashi Maoka
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- French
- Weight
- 84 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0040-4039
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๐ SIMILAR VOLUMES
Two novel C 69 carotenoids containing an a-tocopherol moiety, named pittosporumxanthins A1 (1) and A2 (2), have been isolated from the seeds of Pittosporum tobira. Their structures were elucidated by NMR and CD spectral analysis and chemical means.
The structures of carbapenems OA-6129A, B,, B2 and C were determlned by spectroscopy and chemical transformation In the course of our extensive work on carbapenems, B2($) and C($,)') new compounds OA-6129A(l), Bl($), have been isolated as sodium salts from Streptmyces sp. OA-6129 These compounds sho