Two aminooligosaccharides. isovalertatins D03 (1) and D23 (2). were isolated from the culture filtrate of Streptomyces luteogriseus. Their structures were reinvestigated and revised by spectroscopic evidences includin...Two aminooligosaccharides. isovalertatins D03 (1) and D23 (2). were isolated from the culture filtrate of Streptomyces luteogriseus. Their structures were reinvestigated and revised by spectroscopic evidences including ESI multistage mass spectrometry and 2-dimensional NMR techniques.展开更多
基金This project was financially supported by the National Natural Sciences Foundation of China (Grants 39930180 and 39625025).
文摘Two aminooligosaccharides. isovalertatins D03 (1) and D23 (2). were isolated from the culture filtrate of Streptomyces luteogriseus. Their structures were reinvestigated and revised by spectroscopic evidences including ESI multistage mass spectrometry and 2-dimensional NMR techniques.
