A new halogenated biindole and a new apo-carotenone have been isolated from the ethanolic extract of the green alga Chaetomorpha basiretorsa Sethcell. On the ba
23 compounds containing pyranone pharmaeophore of territrem B were designed and synthesized. Some of the analogues showed IC50 values of AChE inhibition at 10-5
Three new anthraquinones, emodin-8-β-D-(2'-O-coumarate)glucoside 1, emodin-8-β-D-(6′-O-acetyl)glucoside 2 and physicon-8-β-D-(6′-O-acetyl)glucoside 3,