Biological Activity of Alkyl 2-(Acylthio)benzoates.
作者:Eiko MATSUMURA、Takahiro NISHINAKA、Hiroshi TSUJIBO、Hiroko HACHIKEN、Yasuyoshi MIKI、Yoshikazu SAKAGAMI、Yoshihiko INAMORI
DOI:10.1248/bpb.23.254
日期:——
Of a series of synthetic alkyl 2-(acylthio)benzoate (1-20), all the derivatives except for n-butyl 2-butyrylthiobenzoate (18) and n-butyl 2-n-valerylthiobenzoate (20) showed clear phytogrowth-inhibitory activity. All the compounds tested except for methyl 2-butyrylthiobenzoate (3) exhibited cytotoxic activity on mouse splenic T cells. Strong phytogrowth-inhibition and cytotoxic activity were found with 1, 6, 11 and 16 with an acetylthio group at C-2, suggesting that the acetyl group seems to play an important role in both activities of alkyl 2-(acylthio)benzoates. Among them, methyl 2-acetylthiobenzoate (1) was the strongest inhibitor. On the other hand, potent inhibition of prolyl endopeptidase was exhibited by 2, 7, 12 and 17 with a propionylthio group at C-2. These findings imply that a propionyl group might be useful for increasing the inhibitory activity against on prolyl endopeptidase.
在一系列合成的烷基2-(酰硫)苯甲酸酯(1-20)中,除了正丁基2-丁酰硫苯甲酸酯(18)和正丁基2-n-戊酰硫苯甲酸酯(20)外,所有衍生物均显示出明显的植物生长抑制活性。除了甲基2-丁酰硫苯甲酸酯(3)外,所有测试的化合物均表现出对小鼠脾脏T细胞的细胞毒活性。具有C-2位置乙酰硫基的化合物1、6、11和16显示出强烈的植物生长抑制作用和细胞毒活性,这表明乙酰基在烷基2-(酰硫)苯甲酸酯的这两种活性中似乎起着重要作用。其中,甲基2-乙酰硫苯甲酸酯(1)是最强的抑制剂。另一方面,具有C-2位置丙酰硫基的化合物2、7、12和17表现出对脯氨酸内肽酶的强效抑制。这些发现暗示,丙酰基可能有助于提高对脯氨酸内肽酶的抑制活性。