130155-33-8Relevant academic research and scientific papers
Antitumor sterols from the mycelia of Cordyceps sinensis
Bok, Jin Woo,Lermer, Leonard,Chilton, Jeff,Klingeman, Hans G.,Towers, G.H. Neil
, p. 891 - 898 (1999)
Activity guided fractionations led to the isolation of two antitumor compounds 5α,8α-epidioxy-24(R)-methylcholesta-6,22-dien-3β-D- glucopyranoside and 5,6-epoxy-24(R)-methylcholesta-7,22-dien-3β-ol from the methanol extract of Cordyceps sinensis. Two previously known compounds, ergosteryl-3-O-β-D-glucopyranoside and 22-dihydroergosteryl-3-O-β-D- glucopyranoside were also isolated. The structures of hitherto unknown sterols were established by 1D and 2D NMR spectroscopic techniques with the former synthesized in order to confirm the identity of the sugar moiety by chemical correlation. The glycosylated from of ergosterol peroxide was found to be a greater inhibitor to the proliferation of K562, Jurkat, WM-1341, HL- 60 and RPMI-8226 tumor cell lines by 10 to 40% at 10 μg/ml than its previously identified aglycone, 5α,8α-epidioxy-24(R)-methylcholesta-6,22- dien-3β-ol.
Synthesis of ergosterol and 5,6-dihydroergosterol glycosides and their inhibitory activities on lipopolysaccharide-induced nitric oxide production
Park, HoonGyu,Lee, Tae Hoon,Chang, Fei,Kwon, Hyun Ji,Kim, Jiyoung,Kim, Hakwon
, p. 1339 - 1344 (2013/07/28)
We have synthesized several glycosyl ergosterols and 5,6-dihydroergosterols (DHE) and examined their effects on production of nitric oxide (NO) and iNOS protein expression in LPS-treated RAW264.7 macrophage cells. Our results showed that DHE derivatives i
Highly efficient synthesis and antitumor activity of monosaccharide saponins mimicking components of Chinese folk medicine Cordyceps sinensis
Zhu, Zhen-Yuan,Yao, Qiang,Liu, Yang,Si, Chuan-Ling,Chen, Jing,Liu, Nian,Lian, Hong-Yu,Ding, Li-Na,Zhang, Yong-Min
, p. 429 - 435 (2012/10/07)
Ergosterol 3-O-β-d-glucopyranoside (1a) and ergosterol 3-O-d-galactopyranoside (1b) were highly efficiently synthesized and evaluated for their inhibitory activities against two tumor cell lines. The structures of these compounds were extensively confirmed by 1H, 13C NMR, IR, and HRMS. Compounds 1a and 1b exhibited interesting cytotoxic profiles. The antitumor activity of compound 1a was higher than that of 1b.
