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Preparative high performance liquid chomatography on straight silica gel of fermentatio liquor of Streptomyces erythreus
(University of Nairobi, 1984)
Isolation of erythromycins and related substances from fermentation residues of strepto.'i1yces erythreus by high-performance liquid chromatography on silica gel
(1985)
Preparative high-performance liquid chromatography on silica gel allows the isolation of erythromycins and related substances from mother-liquor concentrates. Three mobile phases were used consecutively: A, ethyl ...
Thin-layer chromatographic study of the metabolites of erythromycins in the wistar rat
(1988)
The metabolites of erythromycin A, anhydroerythromycin A, N-demethylerythromycin A and erythromycin B in the Wistar rat were studied by thin-layer chromatography. In some experiments germ-free rats, rats with a cannulated ...
Translactonization in Erythromycins
(1987)
When erythromycin A is heated in diethylamine-acetic acid. an erythromycin hemiketal is obtained, which can be further transformed into a new enol ether and spiroketal. The new euol ether is also obtained in equilibrium ...
Separation of erythromycin and related substances by high-performance liquid chromatography on poly (styrene-divinylbenzene) packing materials
(1985)
A comparative evaluation of three brands of polyrstyrene-divinylbenzene) co¬polymers, Hamilton PRP-I (10 ,um), Rogel (8 ,um) and TSK-Gel (10 Jim), as column packing materials for high-performance liquid chromatographic ...
Identification of novel erythromycin derivatives in mother liquor concentrates of streptomyces erythraeus
(1987)
The identification of five novel compounds, pseudo-erythromycin A-6,9-hemiketal, 8,9- anhydro-pseudo-erythromycin A-6,9-hemiketal, 8,9-anhydro-pseudo-N-demethylerythromycin A-6,9-hemiketal, 5-0-fl-o-desosaminylerythronolide ...