1.
Chem Pharm Bull (Tokyo)
; 47(8): 1128-33, 1999 Aug.
Article
in English
| MEDLINE
| ID: mdl-10478468
ABSTRACT
Eleven pregnanes were isolated from the hydrolysate of the CHCl3 extract fractionated from the caules of Hoya carnosa. Among these, six pregnanes, including 19-acetoxydigipurpurogenin II, were new, and their structures were elucidated. The structures of twenty new pregnane tetraosides and pentaosides, named hoyacarnosides A-T, besides three known ones from the CHCl3 extract, were determined.
Subject(s)
Plants, Medicinal/chemistry , Pregnanes/isolation & purification , Carbohydrate Sequence , Chloroform , Chromatography, High Pressure Liquid , Glycosides/chemistry , Glycosides/isolation & purification , Magnetic Resonance Spectroscopy , Molecular Sequence Data , Plant Extracts/chemistry , Pregnanes/chemistry , Solvents , Spectrometry, Mass, Fast Atom Bombardment
2.
Phytochemistry
; 47(5): 833-7, 1998 Mar.
Article
in English
| MEDLINE
| ID: mdl-9542174
ABSTRACT
In addition to huratoxin, pimelea factor P2, and wikstroelides A-G from the fresh bark, eight daphnane-type diterpenoids, wikstroelides H-O, were isolated from the bark and stem, and their structures established. Cytotoxicity was assayed on some wikstroelides.
