Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Ralf Thiericke"'
Autor:
Roberto G. S. Berlinck
Publikováno v:
Journal of Natural Products. 63:429-430
Autor:
Berlinck, R. G. S.
Publikováno v:
Journal of Natural Products; February 2000, Vol. 63 Issue: 3 p429-430, 2p
Publikováno v:
Liebigs Annalen. 1996:627-633
Novel pyranacetals, named agistatines A, B, D, and E (1 to 4), were discovered by a chemical screening in the culture broth of the fungus FH-A 6239. The structures were established by detailed spectroscopic investigations and confirmed by X-ray analy
Autor:
Susanne Grabley, Ralf Thiericke, Dirk Wunderlich, Isabel Sattler, Xiao-Zhang Feng, Jin-Feng Hu
Publikováno v:
Natural Product Research. 17:451-458
Chemical screening with extracts of Actinomycetes strains resulted in the detection, isolation and structure elucidation of five new isoflavone glycosides from Streptomyces sp. (GT 51173): 5-O-alpha-L-rhamnopyranosyl genestein (genestein G1, 1), 5-O-
Publikováno v:
European Journal of Organic Chemistry. 2001:261-267
New diketopiperazines, named maremycins C1/C2 (1a/1b) and D1/D2 (2a/2b), as well as the novel spiro-indoles, maremycins E (3) and F (4), have been detected alongside the known maremycin B (6) in the culture broth of Streptomyces sp. (strain GT 051237
Autor:
Susanne Grabley, Isabel Sattler, Jin-Feng Hu, Dirk Wunderlich, Xiao-Zhang Feng, Ralf Thiericke
Publikováno v:
European Journal of Organic Chemistry. 2000:3353-3356
Chemical screening of extracts of Actinomycetes strains has led to the detection, isolation, and structure elucidation of the new cyclic depsipeptide rakicidin C (1). The secondary metabolite from Streptomyces sp. (strain GT 61042) is built-up from g
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 626:1905-1908
Publikováno v:
Natural Product Letters. 14:341-348
The new natural products, streptoketol A (1) and B (2), were discovered by chemical screening as secondary metabolites of Streptomyces sp. (strain GT 051243). The absolute stereochemistry of 1 was deduced by Helmchen's method and CD spectroscopy. The
Publikováno v:
European Journal of Organic Chemistry. 2000:2401-2406
Publikováno v:
European Journal of Organic Chemistry. 2000:1883-1887
The biosynthesis of the gabosines A−C (3−5) was studied by feeding cultures of Streptomyces cellulosae subsp. griseorubiginosus (strain S 1096) with 13C-labeled precursors. Although the carba sugars are structurally related to shikimic acid, the