Abstract: An amide having Casium -antagonist activity was isolated from Aster tartaricus .Its structure was determined as N - ( N - benzoyl - L - phenylalanyl - ) - 0 - actyl - L - phenylalanol by spectral methods and synthesis.

Key words: Aster tartaricus , Amide

摘要： 从中药紫菀(Aster tartaricus)根中分离了一个有钙桔抗活性的酿胺类化合物。以L-苯丙氨酸为起始原料，分别经苯甲酸化，甲酯化并还原，然后用DCC法缩会再乙酸化，合成了该化合物，证明其结构为N-(N-苯甲酸基-L-苯丙氨酸基)－O-乙酰基-L-苯丙氨醇。

关键词: 紫菀, 酷胺, 钙桔抗活性, 合成