Proceragenin 在
jones reagent 作用下,
以
丙酮 为溶剂,
以2.5 mg的产率得到4-((5R,8R,9S,10S,13R,14S,17R)-14-Hydroxy-10,13-dimethyl-7-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-5H-furan-2-one
参考文献:
名称:
Proceragenin, an antibacterial cardenolide from Calotropis procera
摘要:
A new cardenolide, proceragenin, has been isolated from Calotropis procera. Its structure was determined as 7-beta,14-beta-dihydroxy-5-alpha-card-20(22)-enolide through spectroscopic studies including 2D NMR and NOE difference measurement. Its biological screening showed antibacterial activity against both Gram positive and Gram negative bacteria.