TY - JOUR
T1 - Diterpenes from a Kaempferia species
AU - Prawat, U.
AU - Tuntiwachwuttikul, P.
AU - Taylor, W.C.
AU - Engelhardt, L.M.
AU - Skelton, Brian
AU - White, Allan
PY - 1993
Y1 - 1993
N2 - Six novel diterpenes, sandaracopimaradien-9alpha-ol-1-one, sandaracopimaradien-1alpha,9alpha-diol, 6beta-acetoxysandaracopimaradien-9alpha-ol-1-one, sandaracopimaradien-6beta,9alpha-diol-1-one, 6beta-acetoxysandaracopimaradien-1alpha,9alpha-diol and sandaracopimaradien-1alpha,6beta,9alpha-triol have been isolated from the rhizomes of Kaempferia sp. The structures were assigned on the basis of their spectroscopic data and by chemical conversions. The crystal structures of the second and fifth compounds were also determined and the absolute stereochemistry of all the compounds established by CD methods.
AB - Six novel diterpenes, sandaracopimaradien-9alpha-ol-1-one, sandaracopimaradien-1alpha,9alpha-diol, 6beta-acetoxysandaracopimaradien-9alpha-ol-1-one, sandaracopimaradien-6beta,9alpha-diol-1-one, 6beta-acetoxysandaracopimaradien-1alpha,9alpha-diol and sandaracopimaradien-1alpha,6beta,9alpha-triol have been isolated from the rhizomes of Kaempferia sp. The structures were assigned on the basis of their spectroscopic data and by chemical conversions. The crystal structures of the second and fifth compounds were also determined and the absolute stereochemistry of all the compounds established by CD methods.
U2 - 10.1016/0031-9422(93)85242-J
DO - 10.1016/0031-9422(93)85242-J
M3 - Article
VL - 32
SP - 991
EP - 997
JO - Phytochemistry
JF - Phytochemistry
ER -