Acyclic and incompletely cyclized triterpene alcohols in the seed oils of theaceae and gramineae.
The triterpene alcohol constituents of the non-saponifiable lipids of two Theaceae seed oils, sasanqua and camellia oils, and two Gramineae seed oils, wheat germ and rice bran oils, were investigated. This led to the isolation and characterization of one acyclic and eight incompletely cyclized triterpene alcohols. They are camelliol A, camelliol B, camelliol C, achilleol A, helianol, isohelianol, sasanquol, graminol A [(13R, 14R)-3,4-seco-25(10->9)abeo-8alpha,9beta,10al phapodioda-4,17,21 -trien-3-ol], and (2Z,6Z,10Z,14E,18E)-farnesyl-farnesol. Two other compounds isolated were characterized as (2Z,6Z,10E,14E)-geranylfarnesol, a sesterterpene alcohol, and phytol, a diterpene alcohol. Graminol A and (2Z,6Z,10E,14E)-geranylfarnesol are considered to be new natural products.
Akihisa
T
T
College of Science and Technology, Nihon University, Tokyo, Japan. akihisa@chem.cst.nihon-u.ac.jp
Koike
K
K
Kimura
Y
Y
Sashida
N
N
Matsumoto
T
T
Ukiya
M
M
Nikaido
T
T
D000438:Alcohols / Q000032:analysis* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D003500:Cyclization; D020448:Ericales / Q000737:chemistry*; D005778:Gefarnate / Q000031:analogs & derivatives / Q000032:analysis / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008968:Molecular Conformation; D015394:Molecular Structure; D010938:Plant Oils / Q000737:chemistry*; D006109:Poaceae / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D014315:Triterpenes / Q000032:analysis* / Q000737:chemistry
D000438:Alcohols; D010938:Plant Oils; D014315:Triterpenes; D005778:Gefarnate; C043321:geranylfarnesol