Two new compounds vemonioside S and vemoniether S were isolated from the stem of Vernonia cumingiana, and their structures were elucidated on the basis of spectroscopic evidences.
Two new diterpenes, 2β, 16β-ent-kaurane diol, 15α, 16α-epoxy-17β-al-ent-kaurane- 19-oic acid were isolated from Helianthus annuus L. Their structures were determined by spectroscopic evidences.
基金supported by the National Natural Science Foundation of People's Republic of China(No.20432030).
文摘Two new compounds vemonioside S and vemoniether S were isolated from the stem of Vernonia cumingiana, and their structures were elucidated on the basis of spectroscopic evidences.
基金supported by the National Natural Science Foundation of China(No 20432030)
文摘Two new diterpenes, 2β, 16β-ent-kaurane diol, 15α, 16α-epoxy-17β-al-ent-kaurane- 19-oic acid were isolated from Helianthus annuus L. Their structures were determined by spectroscopic evidences.
