Three new olefinic acetogenin glycosides from leaves of Staphylea bumalda DC.

Three new olefinic acetogenin glycosides (3, 6 and 7) have been isolated from Staphylea bumalda DC., together with four known congeners (1, 2 and 4, 5). Their structures were determined on the bases of spectral data.

Glycosidic constituents of the leaves of an Okinawan Leguminosae plant, Derris trifoliata Lour.

From the leaves of Derris trifoliata, collected in Okinawa, 15 glycosidic compounds were isolated and identified.

Euodionosides A-G: megastigmane glucosides from leaves of Euodia meliaefolia.

From a 1-BuOH-soluble fraction of the MeOH extract of leaves of Euodia meliaefolia, collected in Okinawa, seven megastigmane glucosides, named euodionosides A-G, were isolated together with three known megastgmane glucosides, and two aliphatic and three phenolic compounds. Their structures were elucidated through a combination of spectroscopic analyses and application of the modified Mosher's method.

Bridelionosides A-F: Megastigmane glucosides from Bridelia glauca f. balansae.

The chemical investigation of leaves of Bridelia glauca f. balansae afforded six megastigmane glucosides, named bridelionosides A-F, along with seven known megastigmane glucosides. Their structures were determined by a combination of spectroscopic analyses and by application of the modified Mosher's method.