摘要
运用硅胶、凝胶和高效液相色谱进行分离纯化,根据理化常数和波谱数据鉴定化合物的结构。从中药枳壳中分离并鉴定了7个环肽成分:环-(亮氨酸1-异亮氨酸2-丙氨酸3-苏氨酸4-甘氨酸5-苏氨酸6-苯丙氨酸7)(1)、环-(甘氨酸1-亮氨酸2-缬氨酸3-亮氨酸4-脯氨酸5-丝氨酸6)(2)、环-(亮氨酸1-亮氨酸2-脯氨酸3-酪氨酸4-甘氨酸5-丝氨酸6-脯氨酸7)(3)、环-(甘氨酸1-甘氨酸2-亮氨酸3-亮氨酸4-亮氨酸5-脯氨酸6-脯氨酸7-苯丙氨酸8)(4)、环-(脯氨酸-丙氨酸)(5)、环-(丙氨酸-异亮氨酸)(6)、环-(丙氨酸-亮氨酸)(7)。除2和4外,其余环肽均为首次从中药枳壳中分离得到。
Seven cyclopeptides were isolated and purified from the immature fruits of Citrus aurantium L. by silica gel, Sephadex LI-I-20 and HPLC. Their structures were determined on the basis of spectroscopic data as Cyclo-(Leul-lle2- Ala3-Thr4-GlyS-Thr6-Phe7 ) ( Citrusin I ) ( 1 ), Cyclo-( Gly1-Lcu2-Val3-Leu4-Pro5-Ser6 ) ( 2 ), Cyclo-( Leu1-Leu2-Pro3- Tyr4-Gly5 -Ser6-Pro7 ) ( Citrusin HI ) ( 3 ), Cyclo- ( Gly1 -Gly2-Leu3 -Leu4-Leu5 -Pros-Pro7 -Phe8 ) ( 4 ), Cyclo- ( Pro-Ala ) (5) ,Cyclo-(Ala-Ile) (6) ,Cyclo-(Ala-Leu) (7). All compounds except 2 and 4 were isolated from this plant for the first time.
出处
《天然产物研究与开发》
CAS
CSCD
北大核心
2014年第9期1416-1420,共5页
Natural Product Research and Development
基金
"重大新药创制"科技重大专项项目(2011ZX09307-002-02)
云南省自然科学基金项目(2012GA003)
关键词
芸香科
枳壳
环肽
Rutaceae
Citrus aurantium
cyclopepfide