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Lignans and diterpenes of three Aristolochia species
(Phytochemistry, 1988-12-01) [Artigo]
Phytochemical examination of Aristolochia cymbifera, A. esperanzae and A. galeata led to the isolation of furofuran and dibenzylbutyrolactone type lignans, as well as of clerodane and ent-labdane type diterpenes. Structural ...
Clerodane diterpenes from Aristolochia species
(Phytochemistry, 1987-12-01) [Artigo]
The investigation of Aristolochia brasiliensis and A. esperanzae afforded 12 clerodane derivatives, including the following six novel ones: rel (5S, 8R, 9S, 10R)-2-oxo-ent-3-cleroden-15-oic acid, rel (5S, 8R, 9S, ...