114916-05-1Relevant articles and documents
Bis(p-coumaroyl)spermidine, the penultimate precursor of the alkaloid lunarine
Sagner, Silvia,Shen, Zheng-Wu,Zenk, Meinhart H.
, p. 2443 - 2446 (1997)
The alkaloid lunarine occurring in Lunaria annua seeds was shown to be synthesized by stereoselective phenoloxidative coupling from synthetic bis(p-coumaroyl)spermidine.
Antifungal Polyamides of Hydroxycinnamic Acids from Sunflower Bee Pollen
Kyselka, Jan,Bleha, Roman,Dragoun, Miroslav,Bialasová, Kristyna,Horá?ková, ?árka,Sch?tz, Martin,Sluková, Marcela,Filip, Vladimír,Synytsya, Andriy
, p. 11018 - 11026 (2018/10/24)
The aim of the bioassay-guided fractionation was the selection of the most potent group of compounds responsible for the protection of sunflower bee pollen grains. Synthesis of prospective antifungal polyamides of hydroxycinnamic acids was based on previo
The biosynthesis of lunarine in seeds of Lunaria annua
Sagner, Silvia,Shen, Zheng-Wu,Deus-Neumann, Brigitte,Zenk, Meinhart H.
, p. 375 - 387 (2007/10/03)
Using an optimized precursor feeding system, the biosynthesis of the alkaloid lunarine in Lunaria annua seeds was investigated. The synthesis of radioactively labelled precursors for the application experiments is described. Lunarine was shown to be synthesized by stereo-selective phenol- oxidative coupling of N1,N10-bis(p-coumaroyl)spermidine. p-Coumaric acid for the biosynthesis of this dimer is formed from L-phenylalanine via trans- cinnamic acid. The polyamine moiety of lunarine, spermidine, and its immediate precursor putrescine are preferentially synthesized from arginine. Enzyme studies with microsomes of Lunaria annua seeds indicated that a cytochrome P-450 enzyme might be responsible for the phenol-oxidative coupling of N1,N10-bis (p-coumaroyl)spermidine yielding the hexahydrodibenzofuran ring of lunarine.