Ailanthusins A-G and nor-lupane triterpenoids from Ailanthus triphysa

Eight triterpenoids, ailanthusins A-G and 29-nor-lup-1-ene-3,20-dione, along with twenty known compounds, were isolated from Ailanthus triphysa. Their structures were elucidated by spectroscopic analyses, one of which was confirmed by single-crystal X-ray analysis.142