Efficient Synthesis of B- and C-Rings Components of Phycobilin Derivatives for Structure/Function Analysis of Phytochrome
摘要:
从相应的内酯开始,高效地制备出了植物纤维素衍生物的 B 环和 C 环成分。这种合成方法不仅可以制备植物花青素(PCB),还可以制备具有丁酸侧链而非丙酸侧链的 PCB 衍生物、C8 或 C12 处的区域选择性单酯化 PCB 衍生物,以及 PCB 与 B 环和 C 环的甲基和丙酸取代基的区域异构体,从而首次实现了对植物色素的结构/功能分析。
sequence for the formation of the key nitroalkene moiety. Endogenous nitrated fatty acids are an important class of signaling molecules. Herein a modular route for the efficient and regiospecific preparation of nitrooleic acids as well as various analogues is described. The approach is based on a simple set of alkyl halides as common building blocks and a Henry reaction/Burgess dehydration sequence for the
B- and C-Rings components of phycobilin derivatives were efficiently prepared starting from the corresponding lactones. This synthetic method made it possible to prepare not only phycocyanobilin (PCB), but also PCB derivatives having butanoic acid side chain(s) instead of propanoic one(s), regioselectively monoesterified PCB derivatives at C8 or C12, and regioisomers of PCB with respect to methyl and propanoic acid substituents of B- and C-rings for the first time toward the structure/function analysis of phytochrome.
从相应的内酯开始,高效地制备出了植物纤维素衍生物的 B 环和 C 环成分。这种合成方法不仅可以制备植物花青素(PCB),还可以制备具有丁酸侧链而非丙酸侧链的 PCB 衍生物、C8 或 C12 处的区域选择性单酯化 PCB 衍生物,以及 PCB 与 B 环和 C 环的甲基和丙酸取代基的区域异构体,从而首次实现了对植物色素的结构/功能分析。