title: New Drimane Sesquiterpenoids from Tidestromia oblongifolia.
abstract: From an acetone extract of the aerial parts of Tidestromia oblongifolia (Amaranthaceae), a new drimane sesquiterpenoid bearing an 11,12,13-trihydroxydrimene skeleton (1) as well as the 11,12 acetonide of 1 were isolated. Three known stigmastane triterpenoids were also isolated. Structures were elucidated with the aid of 1D and 2D NMR spectroscopic techniques. The absolute configuration of 1 was confirmed by single-crystal x-ray crystallography. This is the first report on phytochemical constituents from any plant of the genus Tidestromia and is the first report of the occurrence of drimanes in the Amaranthaceae.
authors.affiliation: Department of Chemistry, Hunter College, City University of New York, New York, NY 10065.
authors.forename: Sandeep
authors.initials: S
authors.lastname: Chaudhary
authors.forename: Vladimir
authors.initials: V
authors.lastname: Thomas
authors.forename: Louis
authors.initials: L
authors.lastname: Todaro
authors.forename: Onica
authors.initials: O
authors.lastname: Legendre
authors.forename: Stevan
authors.initials: S
authors.lastname: Pecic
authors.forename: Wayne W
authors.initials: WW
authors.lastname: Harding