4.
6α,7α-Epoxy-5α-hydroxy-1-oxo-22R-witha-2,24-dienolide (withanolide B), 5β,6β-Epoxy-4β,20-dihydroxy-1-oxo-22R-witha-2,24-dienolide(withanolide D), and 4β,27-Dihydroxy-1-oxo-22Rwitha-2,5,24-trienolide(5,6-deoxywithaferin A) in Roots of Withania somnifera: Isolation and Their Crystal Structures
机译:6α,7α-环氧-5α-羟基-1-氧代22R-witha-2,24-二烯内酯(withanolide B),5β,6β-环氧-4β,20-二羟基-1-oxo-22R-witha-2,睡茄根中的24-二烯内酯(withanolide D)和4β,27-二羟基-1-氧代-22Rwitha-2,5,24-三烯内酯(5,6-deoxywithaferin A):分离及其晶体结构