title: Tupichigenin A, a new steroidal sapogenin from Tupistra chinensis.
abstract: From the underground parts of Tupistra chinensis, a novel polyhydroxylated spirostanol sapogenin, tupichigenin A [(20S, 22R)-spirost-25(27)-ene-1beta,2beta,3beta,5beta- tetraol] (1), was isolated and determined structurally on the basis of spectroscopic methods. Also isolated was the known steroidal sapogenin (20S, 22R)-spirost-25(27)-ene-1beta,2beta,3beta,4beta, 5beta, 7alpha-hexaol-6-one (2).
authors.affiliation: Department of Applied Chemistry, Fooyin Institute of Technology, Kaohsiung County 831, Taiwan.
authors.forename: W B
authors.initials: WB
authors.lastname: Pan
authors.forename: F R
authors.initials: FR
authors.lastname: Chang
authors.forename: Y C
authors.initials: YC
authors.lastname: Wu
mesh_terms: D002681:China; D019668:Liliaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D012502:Sapogenins / Q000737:chemistry / Q000302:isolation & purification*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013261:Sterols / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012502:Sapogenins; D013261:Sterols; C412922:tupichigenin A