Microbial transformation of (+)- and (-)-2'-demethoxydehydrogriseofulvin by Streptomyces cinereocrocatus.
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منابع مشابه
MICROBIAL TRANSFORMATION OF CHOLESTEROL BY MYCOBACTERIUM SMEGMATIS
Mycobacterium smegmatis PTCC 1307 (CIP 73.26) was used as a microbial agent to produce androsta-1,4-diene-3,17-dione (ADD) and androst-4-ene-3,17-dione, two useful precursors in the synthesis of steroid drugs. The side chain of cholesterol, as the substrate, was selectively cleaved in the presence of five enzyme inhibitors. An intermediate structure with intact side chain, cholest-4-ene-3-one, ...
متن کاملcompactifications and representations of transformation semigroups
this thesis deals essentially (but not from all aspects) with the extension of the notion of semigroup compactification and the construction of a general theory of semitopological nonaffine (affine) transformation semigroup compactifications. it determines those compactification which are universal with respect to some algebric or topological properties. as an application of the theory, it is i...
15 صفحه اولmicrobial transformation of cholesterol by mycobacterium smegmatis
mycobacterium smegmatis ptcc 1307 (cip 73.26) was used as a microbial agent to produce androsta-1,4-diene-3,17-dione (add) and androst-4-ene-3,17-dione, two useful precursors in the synthesis of steroid drugs. the side chain of cholesterol, as the substrate, was selectively cleaved in the presence of five enzyme inhibitors. an intermediate structure with intact side chain, cholest-4-ene-3-one, ...
متن کاملMicrobial transformation of antibiotics. VI. Acylation of chloramphenicol by Streptomyces coelicolor.
Previous papers in this series have described the microbial transformation of clindamycin to clindamycm-S-phosphate1^ Ndemethylclindamycin2), clindamycin sulfoxide2) or clindamycin ribonucleotides3) by Streptomyces species. We have extended our observations on the ability of these organisms to transform antibiotics, to chloramphenicol (I, Fig. 1) which, like clindamycin, binds at the 50S riboso...
متن کاملConjugation and transformation of Streptomyces species by tylosin resistance.
The tlrB gene from Streptomyces fradiae has been cloned and used to construct bifunctional Streptomyces-Escherichia coli shuttle vectors carrying the antibiotic resistance genes to kanamycin-neomycin, thiostrepton and tylosin as selection markers. In the same way, the tlrB gene was subcloned in plasmids including the apramycin resistance gene and the oriT sequence from the plasmid pSET152 to fa...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1983
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.31.934