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Isolation and structure elucidation of vancoresmycin—a new antibiotic from Amycolatopsis sp. ST 101170

✍ Scribed by Cordula Hopmann; Michael Kurz; Mark Brönstrup; Joachim Wink; Dominique LeBeller


Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
163 KB
Volume
43
Category
Article
ISSN
0040-4039

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✦ Synopsis


A new antibiotic, active against Gram-positive bacteria, has been isolated from the fermentation broth of the actinomycete Amycolatopsis sp. ST 101170. The structure of the compound named vancoresmycin, a tetramic acid derivative with a highly oxygenated long alkyl chain, was elucidated by extensive spectroscopic studies and derivatization.


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Structure elucidation of xanthobaccin A,
✍ Yasuyuki Hashidoko; Takato Nakayama; Yoshihisa Homma; Satoshi Tahara 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 244 KB

The major antibiotic constituent, xanthobaccin A, was isolated from broth cultures of Stenotrophomonas sp. strain SB-K88 as a major antifungal substance. The structure elucidation by spectroscopic analyses and chemical conversion revealed it to be a new tetramic acid-containing macrocyclic lactam.