Eight new C-21 steroidal glycosides from Dregea sinensis var. corrugata

Eight new steroidal glycosides, dresiosides were isolated from the stems of Dregea sinensis var. corrugate and their structures were deduced on the basis of chemical and spectral evidence. The sugar units of dresiosides were determined as deoxysugars after hydrolysis and isolation from natural glyco...

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Veröffentlicht in:	Steroids 2007-06, Vol.72 (6), p.514-523
Hauptverfasser:	Liu, Yunbao, Tang, Wenzhao, Yu, Shishan, Qu, Jing, Liu, Jing, Liu, Yue
Format:	Artikel
Sprache:	eng
Schlagworte:	Apocynaceae - chemistry Asclepiadaceae Biological and medical sciences Carbohydrate Sequence Dregea sinensis var. corrugata Fundamental and applied biological sciences. Psychology Glycosides - chemistry Glycosides - isolation & purification Hydrolysis Molecular Sequence Data Steroidal glycosides Vertebrates: endocrinology
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Beschreibung
Zusammenfassung:	Eight new steroidal glycosides, dresiosides were isolated from the stems of Dregea sinensis var. corrugate and their structures were deduced on the basis of chemical and spectral evidence. The sugar units of dresiosides were determined as deoxysugars after hydrolysis and isolation from natural glycosides. The absolute configurations of deoxysugars were determined as D on the basis of their optical rotation values in comparison with appropriate standards.
ISSN:	0039-128X 1878-5867
DOI:	10.1016/j.steroids.2007.03.002