New lycorine-type alkaloid from Lycoris traubii and evaluation of antitrypanosomal and antimalarial activities of lycorine derivatives
作者:Yosuke Toriizuka、Eri Kinoshita、Noriyuki Kogure、Mariko Kitajima、Aki Ishiyama、Kazuhiko Otoguro、Haruki Yamada、Satoshi Ōmura、Hiromitsu Takayama
DOI:10.1016/j.bmc.2008.10.061
日期:2008.12.15
A new lycorine derivative LT1 (4) was isolated from the aerial part and bulbs of Lycoris traubii Hayward (Amaryllidaceae). Its structure including absolute configuration was established by spectroscopic analysis and semi-synthesis to be 1-O-(3'S)-hydroxybutanoyllycorine. Some lycorine ester derivatives including LT1 were examined for their inhibitory activity against Trypanosoma brucei brucei, the
从Lycoris traubii Hayward(Amaryllidaceae)的地上部分和鳞茎中分离出一种新的lycorine衍生物LT1(4)。通过光谱分析和半合成将其包括绝对构型的结构确定为1-O-(3'S)-羟基丁酰赖氨酸。检查了包括LT1在内的一些蛋氨酸酯衍生物对布鲁氏锥虫布鲁斯氏菌(与昏睡病有关的寄生虫)和恶性疟原虫(疟疾的病原体)的抑制活性。其中,2-O-乙酰基肾上腺素(6)对寄生虫T. b的活性最强。brucei和LT1(4),1-O-(3'R)-羟基丁酰赖氨酸(8),1,2-二-O-丁酰赖氨酸(11)和1-O-丙酰赖氨酸(12)对P具有显着活性恶性疟原虫在体外实验中。