Steroids of the Marine Sponge Cinachyra tarentina: Isolation of Cholest-4-ene-3,6-dione and (24R)-24-Ethylcholest-4-ene-3,6-dione
β Scribed by Aiello, Anna; Fattorusso, Ernesto; Magno, Silvana; Menna, Marialuisa; Pansini, Maurizio
- Book ID
- 120025430
- Publisher
- American Chemical Society
- Year
- 1991
- Tongue
- English
- Weight
- 289 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0163-3864
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π SIMILAR VOLUMES
Two new 6-hydroximino-4-en-3-one steroids: (24R, 6E)-24-ethylcholest-6-hydroximino-4en-3-one (1) and (6E) cholest-6-hydroximino-4-en-3-one (2), accompanied by the known cholest-4-en-3-one wexe isolated from a mixttwe of two morphospecies of the sponge Cinachyrella (C. alloclada and C. apion). Use of
Isolation and Synthesis of the First Natural 6-Hydroximino-4-en-3one Steroids from the Sponges of Cinachyrella spp. -Two new steroids (Ia) and (Ib) are isolated from the title sponges and the structure of (Ia) is confirmed by synthesis from Ξ²-sitoesterol. (Ia) does not show any cytotoxic activity a