Triterpenoids and Diterpenoids from Viburnum chingii
نویسندگان
چکیده
منابع مشابه
Cytotoxic and radical scavenging nor-dammarane triterpenoids from Viburnum mongolicum.
The ethanol extract of the whole plants of Viburnum mongolicum afforded six new nor-dammarane triterpenoids: 3β,12β-dihydroxy-25,26,27-trinordammara-22-en -24,20-olide (1), 3β,12β-dihydroxy-24α-methoxy-25,26,27-trinordammara-20,24-epoxy (2), 3β-O-acetyl-12β-hydroxy-23,24,25,26,27-hexanordammarane-20-one (3), 12β-O- acetyl-15α-hydroxy-17β-methoxy-3-oxo-20,21,22-23,24,25,26,27-octanordammanrane (...
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Antimicrobial-guided fractionation of the EtOAc extract of the stem bark of Croton macrostachys afforded five known compounds including two lupane triterpenoids, lupeol (1) and betulin (2), and three clerodane diterpenoids, floridolide A (3), hardwickic acid (4) and 12-oxo-hardwickic acid (5). Their structures were elucidated on the basis of spectral studies and comparison with published data. ...
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Two new eleven-membered and three new seven-membered vibsane-type diterpenes, named vibsanin L (1) and 14-hydroxyvibsanin F (2), and vibsanin I (3), 14R*,15-epoxyvibsanin C (4) and 14S*,15-epoxyvibsanin C (5) respectively, have been isolated from Viburnum odoratissimum collected in Taiwan. Their structures have been elucidated by spectroscopic analyses and comparison of Nuclear magnetic resonan...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 2011
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.59.496