7-(2'-Hydroxy-3'-chloroprenyloxy)-4,8-dimethoxyfuroquinoline (1) and 6-(2'-hydroxy-3'-chloroprenyloxy)-4,7-dimethoxyfuroquinoline (2), together with ten known compounds, have been isolated from the aerial parts of Ertela (Monnieria) trifolia (L.) Kuntze. All the isolates were tested for
Four new furoquinoline alkaloids (evolatine, evoxine, 6-methoxy-7-hydroxy-dictamnine, haplopine) are isolated from the leaves of Monnieria trifolia. The structures are elucidated by spectrometric methods and some chemical transformations.