supported by the National Natural Science Foundation of China(No.21177098);the Zhejiang Provincial Natural Science Foundation,China(No.LY16B070006);the Zhejiang Traditional Chinese Medicine Science and Technology Project,China(No.2020ZB141).
There are few reports on the relationship between the biological activity and structure of secondary metabolites from Dictyota dichotoma. In this work, the geometric and electronic structures, infrared spectra, ultrav...