<i>N</i>-(Jasmonoyl)tyrosine-Derived Compounds from Flowers of Broad Beans (<i>Vicia </i><i>f</i><i>aba</i>)
作者:Robert Kramell、Jürgen Schmidt、Gabriele Herrmann、Willibald Schliemann
DOI:10.1021/np0501482
日期:2005.9.1
jasmonic acid, N-[(3R,7R)-(-)-jasmonoyl]-(S)-dopa (3) and N-[(3R,7R)-(-)-jasmonoyl]-dopamine (5), were isolated in addition to the known compound N-[(3R,7R)-(-)-jasmonoyl]-(S)-tyrosine (2) from the methanolic extract of flowers of broad bean (Vicia faba). Their structures were proposed on the basis of spectroscopic data (LC-MS/MS) and chromatographic properties on reversed and chiral phases and confirmed
茉莉酸的两个新的酰胺连接的共轭物,N-[(3R,7R)-(-)-茉莉单酰基]-(S)-多巴(3)和N-[(3R,7R)-(-)-茉莉单酰基]从蚕豆(蚕豆)花的甲醇提取物中,除了已知的化合物N-[(3R,7R)-(-)-茉莉酰基]-(S)-酪氨酸(2)之外,还分离了-多巴胺(5) )。他们的结构是根据光谱数据(LC-MS / MS)和反相和手性色谱性质提出的,并通过部分合成得到了证实。此外,通过LC-MS检测并表征了两种瓜二酸异构体(7、8)的酪氨酸结合物。蚕豆花的粗制酶制剂将(+/-)-2和N-[(3R,7R / 3S,7S)-(-)-茉莉酰基]酪胺[(+/-)-4]均羟基化为( +/-)-3和(+/-)-5,分别表明可能存在生物合成关系。此外,商用酪氨酸酶(蘑菇)和红甜菜毛根中含酪氨酸酶的提取物具有相同的催化性能,但底物特异性不同。与游离(+ /-)-茉莉酸[(+/-)-1]。