Two series of novel compounds designed as hybrids of 1-arylnaphthalene lignans with dihydroisoquinolines or isoquinolines were synthesized and evaluated for the
The stereoselective synthesis of the CI-C7 fragment (3R,4S,6R)-3,4-di[(tert-butyldimethylsilyl)oxy]-7-hydroxy-6-methylheptan-2-one, which is the crucial interme
Diacetyl derivative of hecogenin 1 was oxidized to unsaturated ketone 5 via allylic alcohol 3 when it reacted with dimethyldioxirane (DMDO). The structure of 3
<正>Intermolecular addition-cyclization of 1, 3-dicarbonyl compounds with arylbromoallenes in K2CO3 mediated condition afforded 2, 3, 4-trisubstituted furans in
Novel ionic liquids with dual acidity, of which the cation contains Bronsted acidity and anions contain Lewis acidity were synthesized. These ionic liquids obta