A short enantioselective total synthesis of the fundamental pentacyclic triterpene lupeol
(Chemical Equation Presented) The first enantioselective synthesis of lupeol has been developed by applying two carefully crafted cation-π cyclization stages to generate the pentacyclic structure with complete stereocontrol. The synthesis (Scheme 1) is no
Surendra, Karavadhi,Corey
supporting information; experimental part
p. 13928 - 13929
(2009/12/25)
An antidepressant principle of Lobelia inflata L. (Campanulaceae)
A crude methanolic extract of the leaves of Lobelia inflata exhibited antidepressant activity in mice. The extract was fractionated, monitored by the activity, to give β-amyrin palmitate as an active component.
Subarnas,Oshima,Sidik,Ohizumi
p. 620 - 621
(2007/10/02)
REDUCTION OF KETONES TO EPIMERIC ALCOHOLS WITH POTASSIUM HYDROXIDE-DIETHYLENE GLYCOL
Triterpenoid ketones have been reduced to epimeric alcohols on boiling with potassium hydroxide in diethylene glycol. α,β-unsaturated ketone furnished saturated epimeric alcohols.
Pradhan, B. P.,Hassan, A.,Ray, T.
p. 2513 - 2516
(2007/10/02)
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