1960
DOI: 10.1002/cber.19600931230
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Actinomycine, XXIII; Antibiotica aus Actinomyceten, XLV. Überführung von Actinomycin X 2 in die Actinomycine C 1 , X und X

Abstract: Richard K u h n zum 60. Geburtstag gewidmet Actinomycin X2 enthalt ein Molekul L-y-0x0-prolin, das damit zum ersten Ma1 als Bestandteil eines Naturstoffes nachgewiesen ist. Katalytische Hydrierung in Eisessig reduziert das L-y-0x0-prolin des Actinomycins Xz teils zu L-Prolin, teils zu r-allo-Hydroxy-prolin. Im ersten Fall entsteht aus Actinomycin X2 das in seiner Konstitution bekannte Actinomycin C1, im zweiten das bisher unbekannte Actinomycin XOS. -Aluminiumisopropylat reduziert Actinomycin X2unter Umwandlun… Show more

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Cited by 33 publications
(6 citation statements)
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“…Indeed, the symbiotic strain Streptomyces sp. Av25_2 was found to produce actinomycin D (1) and the closely related actinomycin X 2 (2) (26,27) (Fig. 1, Table S1, and Fig.…”
Section: Resultsmentioning
confidence: 99%
“…Indeed, the symbiotic strain Streptomyces sp. Av25_2 was found to produce actinomycin D (1) and the closely related actinomycin X 2 (2) (26,27) (Fig. 1, Table S1, and Fig.…”
Section: Resultsmentioning
confidence: 99%
“…171 4-Keto-L-proline. 4-Keto-L-proline (48) was found to be a component of actinomycins X 2 172 and X 1a 173 from Streptomyces chrysomallus. Because it is largely destroyed during hydrolysis, it was identified following prior reduction to 4-hydroxyproline.…”
Section: Cyclopeptide Alkaloids Containing 3-(aryloxy)prolyl Moieties...mentioning
confidence: 99%
“…After 69 hr fermentation at 28°C, the culture filtrate (pH 7.6) was extracted twice with a 1/3 volume of ethylacetate. Neutral antibiotic components (N) were extracted by this pro- 12 ) and antimicrobial activities. Residual antibiotics were then extracted twice with ethylacetate from the aqueous phase after adjustment with Hel to pH 2.0.…”
Section: Increased Production Of Acidic Actinomycin Components By Thementioning
confidence: 99%