protoaescigenin/トチ

Phytochemical study of the ethanol extract of the seeds of Aesculus assamica led to the isolation of two new triterpenoid saponins. The structure of the new compounds were elucidated on the basis of spectral data to be

Three sapogenins were isolated from the hydrolysate of the saponin mixture extracted from the seeds of Aesculus wilsonii. They were identified as 21-angeloyl-protoaescigenin., aescigenin and protoaescigenin by physicochemical propertise and spectroscopic analysis.

A phytochemical analysis of Aesculus pavia has led to the isolation of eight novel triterpenoid saponins, based on oleane type skeleton and named paviosides A-H (1a, 1b-4a, 4b). On the basis of chemical, and 2D NMR and mass spectrometry data, the structures of the new compounds were elucidated as