No abstract

No abstract

No abstract

Three novel steroidal bitter principles, taccolanolide O (1), P (2), and Q (3), have been isolated from the tubers of Tacca subflaellata and their structures were established by spectroscopic methods.

Chemical investigation of the roots of the Vietnamese plant Tacca paxiana resulted in the isolation of five new steroidal compounds, taccalonolide R (6), S (7), T (8), U (9), and V (10). Their structures were established on the basis of NMR and mass‐spectral data. In addition, the five known taccalonolides A (1), B (2), E (3), K (4), and N (5) were also isolated and identified.