69926-31-4Relevant articles and documents
With antibacterial activity (20 S, 24 R) - ocotillol-type Ginseng saponin derivatives, their preparation and use
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Paragraph 0082-0084; 0089, (2017/09/01)
The invention relates to the fields of organic synthesis and pharmaceutical chemistry, in particular to a (20S, 24R)-ocotillol type ginsenoside derivative having represented in a structural formula (I). The invention further discloses a reparation method of the (20S, 24R)-ocotillol type ginsenoside derivative, pharmaceutical compositions containing the derivative and anti-bacterial and anti-infection application.
Biotransformation of 20(S)-protopanaxatriol by Aspergillus niger and the cytotoxicity of the resulting metabolites
Chen, Guangtong,Song, Yan,Ge, Hongjuan,Ren, Jie,Yang, Xue,Li, Jianlin
, p. 111 - 115 (2015/02/05)
The microbial transformation of 20(S)-protopanaxatriol by cell suspension cultures of Aspergillus niger AS 3.1858 yielded metabolites 1-13. The chemical structures of these transformed products were elucidated based on various spectroscopic analyses, incl
Synthesis, structural determination of a new ocotillol derivative and its epimer
Meng, Qingguo,Bi, Yi,Wang, Liang,Jiang, Naicaiv,Jiang, Yongtao,Zhang, Jiangfeng,Yi, Songtao,Sun, Haijun
, p. 682 - 685 (2012/06/01)
Epimeric 20S, 24-epoxy-dammarane-3β, 6α, 12β, 25-tetraol acetic ester was synthesized from 20(S)-protopanaxatriol in the presence of acetic anhydride and the product oxidated by m-CPBA. 20S, 24R-epoxy dammarane-3β, 6α, 12β, 25-tetraol (ocotillol derivative) and its epimer were synthesized by saponification in the presence of sodium hydroxide in 1:1 molar ratio. The structures of the two compounds were characterized by X-ray diffraction method. The results showed the configuration of C-24 of two epimers as S-form (4, ocotillol derivative) and R-form (3, epimer), respectively.