During investigation of the chemical constituents of the whole plant ethanol extract of Pedlcularis dollchocymba Hand.-Mazz. (Scrophularlaceae), four new irldold glycosides, dolichocymbosides A (compound 1), B (compound 2), C (compound 3) and D (compound 4), were Isolated. Their structures were determined based on spectral data Including 1D and 2D-nuclear magnetic resonance spectroscopy (^1H-^1H COSY, HSQC, HMBC, ROESY) and FAB-MS.
<正>Cdc25C phosphatase(Cdc25C)dephosphorylates the mitotic kinase Cdc2/cyclin B and triggers the cell cycle pro...
Rui-Rui Jia~a Guang-Zhi Zeng~a Xu-Lin Pan~(a,b) Yu-Mei Zhang~a Huo-Qiang Huang~(a,b) Chang-Jiu Ji~(a,b) Jun-Ting Fan~(a,b) Ning-Hua Tan~(a,*) a State Key Laboratory of Phytochemistry and Plant Resources in West China,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650204,China b Graduate School of the Chinese Academy of Sciences,Beijing 100039,China