Phytotoxic cis-clerodane diterpenoids from the Chinese liverwort Scapania stephanii

作者:Li Rui Juan; Sun Yi; Sun Bin; Wang Xiao Ning; Liu Shan Shan; Zhou Jin Chuan; Ye Jian Ping; Zhao Yu; Liu Lei; Lee Kuo Hsiung; Lou Hong Xiang*
来源:Phytochemistry, 2014, 105: 85-91.
DOI:10.1016/j.phytochem.2014.05.019

摘要

Five cis-clerodane diterpenoids, stephanialides A-E, along with seven known cis-clerodanes, scaparvins A-C, parvitexins B and C. 3-chloro-4-hydroxy-parvitexin A, and scapanialide B. were isolated from the Chinese liverwort Scapania stephanii. Their structures were established unequivocally on the basis of spectroscopic data. The absolute configuration of stephanialide A was determined by analysis of CD data using the octant rule. Phytotoxic activity evaluation showed that this type of diterpenoids can significantly inhibit root elongation of the seeds of Arabidopsis thaliana, Lepidium sativum and Brassica pekinensis.