title: Steroidal saponins from the bulbs of Triteleia lactea and their inhibitory activity on cyclic AMP phosphodiesterase.
abstract: The chemical compounds in the bulbs of Triteleia lactea have been analysed as a part of our systematic study of plants of the subfamily Allioideae in Liliaceae. Thirteen steroidal saponins, seven of which appeared to be new compounds, were isolated. The structures of the new saponins were elucidated on the basis of the spectroscopic analysis, including two-dimensional NMR techniques, and hydrolysis. Inhibitory activity of the isolated saponins on cyclic AMP phosphodiesterase was evaluated to identify new compounds with medicinal potential.
authors.affiliation: School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Mimaki
authors.forename: O
authors.initials: O
authors.lastname: Nakamura
authors.forename: Y
authors.initials: Y
authors.lastname: Sashida
authors.forename: T
authors.initials: T
authors.lastname: Nikaido
authors.forename: T
authors.initials: T
authors.lastname: Ohmoto
mesh_terms: D015105:3',5'-Cyclic-AMP Phosphodiesterases / Q000037:antagonists & inhibitors*; D000490:Allium / Q000737:chemistry; D002240:Carbohydrate Sequence; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D010840:Phytosterols / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D010944:Plants / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D016339:Spectrometry, Mass, Fast Atom Bombardment
chemical_list: D010840:Phytosterols; D012503:Saponins; D015105:3',5'-Cyclic-AMP Phosphodiesterases