131086-78-7Relevant articles and documents
The unusual conformational preference of N1,N5,N10-tri-p-coumaroylspermidine E-Z isomers from the Japanese apricot tree, Prunus mume, for the (ZZZ)-form
Mori, Shinnosuke,Akamatsu, Miki,Fukui, Hiroshi,Tsukioka, Junko,Goto, Katsumi,Hirai, Nobuhiro
, p. 131 - 139 (2019)
The Japanese apricot tree, Prunus mume (Siebold) Siebold & Zucc. cv. Nanko, bears two types of flowers: those with anthers that fluoresce under UV irradiation, and those that do not. The chemical composition of both types of anthers has been investigated:
A new nonpeptide tachykinin NK1 receptor antagonist isolated from the plants of compositae
Yamamoto, Atsushi,Nakamura, Ko,Furukawa, Kazuhito,Konishi, Yukari,Ogino, Takashi,Higashiura, Kunihiko,Yago, Hisashi,Okamoto, Kaoru,Otsuka, Masanori
, p. 47 - 52 (2007/10/03)
To find new tachykinin NK1 receptor antagonists from natural sources, we examined the tachykinin antagonist activity in the extracts of approximately 200 species of plants by the use of isolated guinea pig ileum. As a result, we discovered a no
Synthesis of 13C-dilabeled 4-coumaroylspermidines
Geneste, Herve,Hesse, Manfred
, p. 15199 - 15214 (2007/10/03)
Five 13C-dilabeled constitution isomers of 4-coumaroylspermidines were prepared in nine to eleven steps: N1,4-di[(E)-4-coumaroyl]-(5,8- 13C2)spermidine (13b), N1-[(E)-4-coumaroyl]-(5,8-13C2)spermidine (17b), N1,8-di[(E)-4-coumaroyl]-(1,4-13C2)spermidine (20b), N4-[(E)-4- coumaroyl]-(1,4-13C2)spermidine (24b) and N1,4,8-tri[(E)-4-coumaroyl]- (5,8-13C2)spermidine (26). The two 13C-atoms were subsequently introduced using labeled potassium cyanide. The synthesis proceeds through stepwise construction of the polyamine backbone including protection and deprotection steps of the amino functions. Based on 1H-1H NOE interactions, the preliminary study of their binding reveals that 20b binds to tRNA in the same way as spermidine does, whereas 24b and 26 do not show any NOE effects with the tRNA protons.