the Important Direction Projects of Knowledge Innovation in Resource and Environment Fields, Chinese Academy of Sciences (Grant No. KZCX2-111); and the National Natural Science Foundation of China (Grant No. 40072040).
Abundant terrigenous triterpenoid ketones and a series of hopanoid ketones were detected in a peat sample from the recent Gannan Marsh. The identifications of pen-tacyclic triterpenoid ketones are discussed in detail....
Project supported by the National Natural Science Foundation of China.
The roots of oplopanax elatus NAKAI (Chinese name, Cirensen) (Araliaceae) have been used as a medicine in China for tonica,antitussis, eliminating fever,regulating blood pressure and so on.The chemical studies of the ...
Project supported by the National Natural Science Foundation of China
In a previous note, we reported three saponins Ⅰ, Ⅱ and Ⅲ from Oxytropis glabra DC. As a continuing study, five more novel triterpenoid saponins Ⅳ, Ⅴ, Ⅵ, Ⅶ and Ⅹ were isolated from Oxytropis plants. Saponins ...
In our previous paper, two new triterpenoid saponins extracted from Oxytropis ochrocephala Bunge have been reported. This note deals mainly with the structures of other two novel triterpenoid saponins Ⅱ and Ⅲ, isola...