Structural Revision of Isovalertatins D03 and D23 Isolated from the Culture Filtrate of Streptomyces

• 出 处: Chinese Chemical Letters
• 发表日期: 2001年04期
• 关键词: hydroxyl fragmentation overlapped constants Figure sequentially designated bonds

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.

Two aminooligosaccharides, isovalertatins D03 (1) and D23 (2), were isolated from the culture filtrate of Streptomyces luteogriseus. Their structures were re- examined and revised by spectroscopic evidences including ESI multistage mass spectrometry and 2-dimensional NMR techniques.