5 Result(s)
within
Jian-Chao Chen
Plant Sciences
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Article
Open AccessCucurbitane-Type Triterpene Glycosides from Momordica charantia and Their α-Glucosidase Inhibitory Activities
Ten cucurbitane-type triterpene glycosides, including five new compounds named charantosides H (1), J (2), K (3), momorcharacoside A (4), goyaglycoside-l (5), and five known compounds (6–10), were isolated from t...
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Article
Open AccessThree new physalins from Physalis alkekengi var. franchetii
Three new physalin steroids, physalin III (1), physalin IV (2), 3-O-methylphysalin X (3), together with five known physalins (4–8) were isolated from the 80% EtOH extract of calyces of Physalis alkekengi var. fra...
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Article
A new N-containing cucurbitacin from Hemsleya endecaphylla
A new cucurbitacin, endecaphyllacin C, was isolated from the tubers of Hemsleya endecaphylla. The structure was elucidated as 2β,16α,20β,25-tetrahydroxy-24-acetylaminocucurbita-5-en-3,11,22-trione (1) on the basi...
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Article
Open AccessCucurbitane triterpenoids from Hemsleya penxianensis
Two new cucurbitacins, **fushanencins A (1) and B (2), seven new cucurbitane glycosides, **fushanosides E-K (3–9), along with nine known analogues, were obtained from the tubers of Hemsleya penxianensis. Their ...
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Article
Open AccessTriterpenoid alkaloid derivatives from Buxus rugulosa
Four new triterpenoid alkaloid derivatives, buxrugulines A–D (1–4), together with four known ones (5–8), were isolated from the leaves and stems of Buxus rugulosa. The structures of compounds 1–4 were elucidated ...
