干旱区生态环境知识资源中心

Chromatographic purification of the culture broth of Actinomycetes CDS1 provided five new (1-5) and three known (6-8) metabolites. The new compounds 1, 4 and 5 were elucidated due to 1D-, 2D-NMR techniques, FABMS and HR-FABMS analyses. The nature of glycosidic part in 4 was confirmed through optical rotation value and comparison of the R-f value of hydrolyzed sugar with that of standard sample. Compounds 2 and 3 were tentatively identified due to H-1 NMR and +ve FAB-MS analysis as mixture in one of the polar minor fractions. Structures of the known compounds 6-8 were determined due to H-1 NMR and FABMS analysis.