Design and synthesis of conformationally constrained analogues of cis-cinnamic acid and evaluation of their plant growth inhibitory activity
作者:Keisuke Nishikawa、Hiroshi Fukuda、Masato Abe、Kazunari Nakanishi、Yuta Tazawa、Chihiro Yamaguchi、Syuntaro Hiradate、Yoshiharu Fujii、Katsuhiro Okuda、Mitsuru Shindo
DOI:10.1016/j.phytochem.2013.10.001
日期:2013.12
conformationally constrained cis-CA analogues, in which the aromatic ring and cis-olefin were connected by a carbon bridge, were designed, synthesized, and evaluated as plant growth inhibitors. The results of the present study demonstrated that the inhibitory activities of the five-membered and six-membered bridged compounds were enhanced, up to 0.27 μM, and were ten times higher than cis-CA, while the potency
1-O-顺式-肉桂酰-β-D-吡喃葡萄糖被认为是最有效的化感化学候选物之一,由 Hiradate 等人从 Spiraea thunbergii Sieb 中分离出来。 (2004),他认为它的强抑制活性来自顺式肉桂酸,这对于植物毒性至关重要。在本研究中,研究了顺式肉桂酸(cis-CA)的关键结构特征和取代基对生菜根生长抑制的影响。这些结构-活性关系研究表明了芳环和羧酸部分的空间关系的重要性。在此背景下,设计、合成了构象受限的顺式-CA类似物,其中芳环和顺式烯烃通过碳桥连接,并作为植物生长抑制剂进行了评估。本研究结果表明,五元和六元桥化合物的抑制活性增强,高达0.27 μM,比cis-CA高十倍,而其他化合物的抑制活性有所降低。