Synthetic studies relevant to biosynthetic research on vitamin B12. Part 4. Development of the photochemical route to isobacteriochlorins
作者:Peter J. Harrison、Zhi-Chu Sheng、Christopher J. R. Fookes、Alan R. Battersby
DOI:10.1039/p19870001667
日期:——
Pigments based on the isobacteriochlorin macrocycle are of great importance for research on the biosynthesis of vitamin B12. A synthesis of the isobacteriochlorin ring system is developed in which a key step is an 18π-photochemical cyclisation. The reaction conditions are extremely mild and are demonstrated to be compatible with the reactive acetic and propionic acid residues present in the natural
基于异绿菌素大环化合物的
颜料对于
维生素B 12的
生物合成研究具有重要意义。开发了异
氯二环系统的合成方法,其中关键步骤是18π-光
化学环化。反应条件极其温和,并且证明与天然
颜料中存在的反应性
乙酸和
丙酸残基兼容。