Abstract:
:Further isolation work on the water-soluble fraction of a MeOH extract of Tricalysia dubia afforded one new megastigmane gentiobioside, named tricalysionoside A (1), and three sulfates, named sulfatricalysines A-C (2-4). Extensive isolation work on the 1-BuOH-soluble fraction of a MeOH extract of T. dubia yielded sulfatricalysines D-F (5-7) and three new ent-kaurane glucosides, named tricalysiosides X-Z (8-10). The structures of the new compounds were elucidated by analyses of one- and two-dimensional NMR spectroscopic data. The absolute stereochemistry of tricalysionoside A (1) was established by modified Mosher's method.
journal_name
Chem Pharm Bull (Tokyo)journal_title
Chemical & pharmaceutical bulletinauthors
Shitamoto J,Sugimoto S,Matsunami K,Otsuka H,Shinzato T,Takeda Ydoi
10.1248/cpb.59.72subject
Has Abstractpub_date
2011-01-01 00:00:00pages
72-7issue
1eissn
0009-2363issn
1347-5223pii
JST.JSTAGE/cpb/59.72journal_volume
59pub_type
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