170288-58-1Relevant academic research and scientific papers
Alkyl and alkoxycarbonyl derivatives of ginkgolide B: Synthesis and biological evaluation of PAF inhibitory activity
Hu, Lihong,Chen, Zhongliang,Xie, Yuyuan,Jiang, Yuanyin,Zhen, Huawu
, p. 1515 - 1521 (2000)
Alkyl and alkoxycarbonyl derivatives 6-24 of ginkgolide B, prepared in one step from ginkgolide B through alkylation and acylation and evaluated for their in vitro ability to inhibit the PAF-induced aggregation of rabbit platelets, show equivalent or supe
Isolation of ginkgolides A, B, C, J and bilobalide from G. biloba extracts
Jaracz, Stanislav,Malik, Shahid,Nakanishi, Koji
, p. 2897 - 2902 (2007/10/03)
Ginkgolides A, B, C and J, together with bilobalide, are unique terpenoid components of the Ginkgo biloba tree. Due to similar chemical properties, their separation is quite tedious. We have developed an efficient and rapid protocol for separation of individual ginkgolides and bilobalide from G. biloba extracts. The procedure takes advantage of enhanced susceptibility of ginkgolides B and C to benzylation and the ease of separation of these products from ginkgolides A and J which do not react. The protocol is applicable to the previously reported enriched extracts prepared from G. biloba leaves. A single chromatographic step prior to benzylation provides bilobalide and mixture of ginkgolides A, B, C, and J. After benzylation, the individual ginkgolides are separated by chromatography.
