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Four New Alkaloids, Brevianamides O – R, from the Fungus Aspergillus versicolor
✍ Scribed by Guo-You Li; Li-Mei Li; Tao Yang; Xiao-Zhen Chen; Dong-Mei Fang; Guo-Lin Zhang
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- German
- Weight
- 197 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Four new alkaloids, brevianamides O -R (1 -4, resp.), were isolated from the AcOEt extract of the solid-state fermented rice culture of the fungus Aspergillus versicolor. Their structures were elucidated on the basis of spectroscopic analyses.
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Two new cyclic pentapeptides, named versicotides A (1) and B (2), were obtained from a marinederived fungus strain ZLN-60, identified as Aspergillus versicolor. Their structures were established on the basis of chemical and spectroscopic evidence. Versicotides are new cyclic pentapeptides which cont
## Abstract The structures of the new cottoquinazolines B (Ia), C (Ib), and D (Ic) are determined by spectroscopic means, X‐ray analysis, and chemical transformation.