Pyrrolosporin A (1) is a new macrolide antitumor antibiotic possessing an unusual spiro-a-acyltetronic acid moiety. The antibiotic was isolated from the fermentation broth of Micromonospora sp. by vacuum liquid chromatography, crystallization and reversed phase HPLC (CIS). The structure was determined by a combination of NMR, MS, IR, UV, X-ray analysis and degradation studies.
吡咯洛霉素A(1)是一种具有不寻常的螺环α-酰基
四氢呋喃酸基团的新型大环抗肿瘤抗生素。该抗生素是通过真空液体色谱法、结晶和反相高效
液相色谱法(CIS)从微小芽孢杆菌属的发酵液中分离得到的。其结构是通过NMR、MS、IR、UV、X射线分析及降解研究的组合确定的。