Three novel cyclopropanoid guaianolides axivalin, ivaxillarin, and anhydroivaxillarin have been isolated from Iva axillaris Pursh. ssp. robustior, and were assigned gross structures I, II, and III, respectively.' To confirm the
The relative and absolute configuration of clerocidin and its cometabolites
β Scribed by N.Rastrup Andersen; P.R. Rasmussen; C.P. Falshaw; T.J. King
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- French
- Weight
- 247 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
The structures of clerocidin and five cometabolites have been established by chemical interconversion, spectral, and X-ray crystallographic methods. Fermentation of the fungus, Oidiodendron truncatum, produces clerocidin (PR 1350)land five cometabolites: PR 1389, m.p. 140-142'C, [dD + 40.6O (c, 0.23, MeOH) PR 1383, colourless oil, (ref. 1) PR 1421, m-p. 157-159"C, [dD + 69.8O (c, 0.53, MeOH) PR 1387, m-p. 214-216OC, 0.25, CHC13)
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