Chemical and Pharmaceutical Bulletin · 2007 · 16 citations · 2 references
Life SciencesBotanyPlant SciencesCarbohydrate ChemistryPlant BiochemistrySteroid BiochemistryPlant Natural Product BiosynthesisSteroid StructureTerpenoid GlycosidesX-ray Diffraction Analysis
Three new C(28) steroidal glycosides, isotubocaposides A (1), B (2), and C (3), were isolated from the fruits of Tubocapsicum anomalum MAKINO. Their chemical structures were elucidated on the basis of spectroscopic and X-ray diffraction analysis of p-bromobenzoyl derivative (5) of isotubocaposigenin (4), the sapogenol derivative of these three glycosides. Isotubocaposides have the structural peculiarity of an unusual side chain carrying a C-21 bound to C-24 on the lactone ring.
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A new class of ergostane glycosides from tubocapsicum anomalum
Kenji Yoshida, Kazushi Shingu, Shoji Yahara et al. · Tetrahedron Letters · 1988 · 15 citations