Structures of New Cytotoxic Antibiotics, Piericidins C7 and C8
β Scribed by Hayakawa, Yoichi; Shirasaki, Shingo; Kawasaki, Takashi; Matsuo, Yoshihide; Adachi, Kyoko; Shizuri, Yoshikazu
- Book ID
- 109867812
- Publisher
- Nature Publishing Group
- Year
- 2007
- Tongue
- English
- Weight
- 126 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0021-8820
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Krivoruchko. -Chem. Abst. 1\_1. 50409 (1969). 9) The C-H long range couplings observed between C-4a (681.6) and 6-H (66.89) and between C-3 (675.3) and 3-CH3 (61.24) indicates that the remaining quaternary oxycarbon (680.2) is assignable to C-12b.
Phloeodictiues Al-A7 (34 34 4a, 4b, 4c, 5n,Sb) aud phloeodictines Cl-C2 (6a, 6b), new antibacterial and cytotoxic guanidine alkaloids, have been isolated from the sponge Phfoeodic@on sp. Their strucmres were established essentially by mass spectrometry utilizing B/E linked scanning and by 2D NMR exp