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Polyacetylated labdane-type diterpenoids, ptychantins P-R from Chinese liverwort Ptychanthus striatus
Jing-Yi Wu1, Jiao-Zhen Zhang, Ya-Qi Kang
1a Department of Natural Products Chemistry , Key Lab of Chemical Biology of Ministry of Education, Shandong University , Jinan 250012 , China.
Journal of Asian Natural Products Research
|February 14, 2015
Abstract:
Three new polyacetylated labdane diterpenoids ptychantins P-R (1-3) and four known compounds (4-7) were isolated from an EtOH extract of the Chinese liverwort Ptychanthus striatus (Lehm. & Lindenb.) Nees. Their structures were established by extensive analysis of spectroscopic data (IR, UV, HRESIMS, 1D NMR, and 2D NMR).