This accounts for 22 carbons and 23 protons. The three missing protons belong to 3 hydroxyl groups, which was confirmed by acetylation of 1 to form a triacetate [3, m/z 528 (M+)].
The structure of enopeptins A and B, novel depsipeptide antibiotics
β Scribed by Hiroyuki Koshino; Hiroyuki Osada; Tatsuya Yano; Jun Uzawa; Kiyoshi Isono
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- French
- Weight
- 240 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0040-4039
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The structures of the amphiphilic peptide antibiotics herbicolin A and B were determined by application of physical methods, chemical degradation, and partial syntheses. Herbicolin B is a lipodepsinonapeptide with the sequence DH-Abu-L-Thr-D-aThr-D-Leu-Gly-D-Gln-Gly-N-Me-L-aThr-L-Arg (DH-Abu = 2,3-d
In our screening studlee for new antibiotics produced by streptomycetes, a new eerie6 of basic macrollde complex, numbered YL-704, was leolated from the solvent extract of the culture filtrate of Streptomyces vlatensis var. sp. MCRL 0388. Isolated YL-704 complex was constituted by several antiblotlc