Abstract 1-O-cis-Cinnamoyl-β-d-glucopyranose is one of the most potent allelochemicals that has been isolated from Spiraea thunbergii Sieb by Hiradate et al. It derives its strong inhibitory activity from cis-cinnamic acid (cis-CA), which is crucial for phytotoxicity. By preparing and assaying a series of cis-CA analogues, it was previously found that the key features of cis-CA for lettuce root growth inhibition are a phenyl ring, cis-configuration of ...
[Ketner, Aimee M.; Kumar, Rakesh; Davies, Tanner S.; Elder, Patrick W.; Raghavan, Srinivasa R. Journal of the American Chemical Society, 2007 , vol. 129, # 6 p. 1553 - 1559]