首页>
外国专利>
Process for preparing ginkgolide B from ginkgolide C
Process for preparing ginkgolide B from ginkgolide C
展开▼
机译:由银杏内酯C制备银杏内酯B的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Prepn. of ginkgolide B (Ib) from ginkgolide (Ic) comprises: (a) reacting with sulphonic anhydride (SA) to give 7-sulphonyloxyginkgolide b; and (b) reacting with borohydride in aprotic solvent.
展开▼