Graphical abstract
Two new apotirucallane triterpenoids, namely chisiamols G (1) and H (2), featuring a 21,23-lactone, together with five known triterpenoids, were isolated from the twigs of Chisocheton paniculatus. The structures of the new compounds were elucidated on the basis of spectroscopic and chemical methods.

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Supplementary material is available for this article at 10.1007/s13659-012-0065-5 and is accessible for authorized users.
Keywords: Chisocheton paniculatus, apotirucallane triterpenoids, chisiamols G and H
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Contributor Information
Wan-Sheng Chen, Email: chenwanshengsmmu@yahoo.com.cn.
Jian-Min Yue, Email: jmyue@mail.shcnc.ac.cn.
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