Studies on the Alkaloids of <i>Thalictrum actaefolium</i> SIEB. et ZUCC. I
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Platanionosides D-J: megastigmane glycosides from the leaves of Alangium platanifolium (Sieb. et Zucc.) Harms var. platanifolium Sieb. et Zucc.
From the leaves of Alangium paltanifolium var. platanifolium, collected in Fukuoka Prefecture, twelve further megastigmane glycosides were isolated. Seven of them, named platanionosides D-J (1-7), were found to be new compounds. Their structures were elucidated from spectroscopic evidence and their absolute structures were determined from beta-D-glucosylation-induced shift trends of 13C-NMR and...
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Zanthoxylum schinifolium Sieb. et Zucc. (Rutaceae), a dioecious shrub with hooked prickly branches, has been used as folk medicine for the treatment of the common cold, stomach ache, diarrhea, and jaundice in China, Korea, and Japan. In our phytochemical investigations on this genus, a new megastigmane sesquiterpenoid, which is referred to as schinifolenol A (1), was isolated from Z. schinifoli...
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4-Acetyltropolone, a minor component of Thujopsis dolabrata SIEB. et Zucc. hondai MAKINO, showed antimicrobial activity against various microorganisms including wood-rotting fungi, a phytogrowth-inhibitory effect with chlorophyll biosynthesis inhibition, cytotoxic effect and inhibitory activity on metalloproteases. This compound had strong antifungal activity on Daedalea dickinsii IFO-4979 [min...
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Proanthocyanidins in Chinese bayberry leaves (PCBLs) were qualitatively analyzed. NMR data suggest that PCBLs are mostly composed of (epi)gallocatechin gallate units. Matrix-assisted laser desorption time-of-flight MS data indicate 95 possible prodelphinidin structures, ranging from dimers to tridecamers. Preparative normal-phase HPLC and further analysis by reverse-phase HPLC together with ele...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1962
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.82.2_308