Photochemistry of Biliverdin IX ? as a model for the study of the photoproducts from natural biliverdin IX? (pterobilin)
作者:Mich�le Bois-Choussy、Michel Barbier
DOI:10.1002/hlca.19800630437
日期:1980.6.6
The configurations of biliverdin-IXγ and -IXδ dimethyl esters 1 and 2 in solutions, have been studied using Nuclear-Overhauser-Effect (NOE) experiments. Irradiation (500-700 nm) of biliverdin IXδ gave syn-Z anti-E isomerization of the central methine bridge and in aerated polar solutions, four new cyclized pigments were isolated for which structures 3, 4, 5 and 6 are proposed. Neobiliverdin IXδ 3 is
的胆绿素-IX的结构γ和-IX δ二甲基酯1和2中的解决方案,已使用原子核研究欧沃豪斯-效应(NOE)实验。BiliverdinIXδ的辐照(500-700 nm)给出了中央次甲基桥的syn-Z抗-E异构化,并且在充气的极性溶液中,分离了四种新的环化颜料,针对它们提出了结构3、4、5和6。NeobiliverdinIXδ 3是在脱气的溶液中还形成(Φ= 4.10 -5),但是颜料4,5和6从光氧化发生带O 2。BiliverdinIXδ似乎是研究发生在天然biliverdinIXγ(蝶呤)乙烯基上的光反应的良好模型。