Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Yasuhisa Saiki"'
Autor:
Takao Hama, Hanani Endang, Yasuhisa Saiki, Toshiko Satake, Kohei Kamiya, Yasuo Fujimoto, Mansur Umar
Publikováno v:
Phytochemistry. 50:303-306
Five new chromone C-glycosides have been obtained from the leaves of Baeckea frutescens. They are: 6-β-C-glucopyranosyl-5,7- dihydroxy-2-isopropylchromone, 8-β-C-glucopyranosyl-5,7-dihydroxy-2-isopropylchromone, 6-β-C-glucopyranosyl-5,7-dihydroxy-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::beef081846cbad6fb8f5f24cefaa6979
https://doi.org/10.1016/s0031-9422(98)00513-5
https://doi.org/10.1016/s0031-9422(98)00513-5
Autor:
Hanani Endang, Yasuo Fujimoto, Kohei Kamiya, Toshiko Satake, Mansur Umar, Yumiko Kimura, Jun Uzawa, Yasuhisa Saiki, Susumu Kitanaka, Takao Hama
Publikováno v:
Chemical and Pharmaceutical Bulletin. 47:1444-1447
Three new compounds; 4'-O-β-D-glucopyranosyl rosmarinic acid (2), 4,4'-O-di-β-D-glucopyranosyl rosmarinic acid(3) and 2R-O-(4'-O-β-D-glucopyranosyl caffeoyl)-3-(4-hydroxyphenyl) lactic acid named as 4'-O-β-D-glucopyranosyl isorinic acid (4) were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6a266a44001e14bacfcbe8f1f3d8348
https://doi.org/10.1248/cpb.47.1444
https://doi.org/10.1248/cpb.47.1444
Publikováno v:
Phytochemistry. 38:1203-1207
Six triterpenoids were isolated from the callus tissues of Paeonia japonica, P. lactiflora and P. suffruticosa. Four of the compounds are new from a natural source: 11α,12α-epoxy-3β,23-dihydroxyolean-28,13β-olide, 3β-hydroxy-11-oxo-olean-12-en-2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfe4809508f094660fa4aac31be856cc
https://doi.org/10.1016/0031-9422(94)00445-y
https://doi.org/10.1016/0031-9422(94)00445-y
Autor:
Hiroshi WADA, Kasumi DAIDOUJI, Hiroyuki FUCHINO, Jiro ENDO, Teruko NAKAMURA, Nobutoshi TANAKA, Takao MURAKAMI, Yasuhisa SAIKI
Publikováno v:
YAKUGAKU ZASSHI. 114:27-32
A new chemotype of Microlepia marginata, P-type strain, was found in the Central districts of Japan. The two main constituents were characterized to be 2 beta,15(R),16-trihydroxy-ent-pimar-7-en-3-one (fumotoshidin A) and 3 alpha-alpha-L-arabinofurano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9bf40b6a2eb0ee24ee974d2e73624aa
https://doi.org/10.1248/yakushi1947.114.1_27
https://doi.org/10.1248/yakushi1947.114.1_27
Autor:
Nobutoshi TANAKA, Kazuo KOBAYASHI, Chie OBATA, Yumi NOSE, Hiroshi WADA, Jiro ENDO, Teruko NAKAMURA, Takao MURAKAMI, Yasuhisa SAIKI
Publikováno v:
YAKUGAKU ZASSHI. 113:70-78
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42bf9132c3b2def2ce02e4c4ffdfecdf
https://doi.org/10.1248/yakushi1947.113.1_70
https://doi.org/10.1248/yakushi1947.113.1_70
Autor:
Kohei Kamiya, Takao Hama, Susumu Kitanaka, Jun Uzawa, Toshiko Satake, Yasuhisa Saiki, Yasuo Fujimoto, Mansur Umar, Yumiko Kimura, Hanani Endang
Publikováno v:
ChemInform. 31
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82f1a3a45b66942ed4c42da09f4068b6
https://doi.org/10.1002/chin.200013197
https://doi.org/10.1002/chin.200013197
Autor:
Hiroshi Wada, Yasuhisa Saiki, Takao Murakami, Nobutoshi Tanaka, Chiuming Chen, Ryoki Orii, Kazuo Ogasa
Publikováno v:
Chemical and Pharmaceutical Bulletin. 39:55-59
Three new trimeric proanthocyanidins were isolated in lactone form (1L, 2L and 3L) and acid form (1A, 2A and 3A) from the fronds of both Arachniodes sporadosora NAKAIKE and A. exilis CHING. Their structures were determined by spectroscopic methods an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8dc9e0b6fe7eaf40d6f5fb02e602a93f
https://doi.org/10.1248/cpb.39.55
https://doi.org/10.1248/cpb.39.55
Autor:
Yasuhisa Saiki, Kazuyuki Hori, Takao Murakami, Kimino Kobayashi, Toshiko Satake, Yasuo Fujimoto, Jun Uzawa
Publikováno v:
Phytochemistry. 29:1679-1682
From the frond of Oreopteris quelpaertensis , a novel chalcone-like product has been isolated as a mixture of keto—enol tautomeric isomers, along with its dimeric form, and their structures were determined by extensive 2D NMR spectroscopy or X-ray
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7db3ff3a6129e46e7deceffb5dc398a5
https://doi.org/10.1016/0031-9422(90)80145-7
https://doi.org/10.1016/0031-9422(90)80145-7
Autor:
Yasuhisa Saiki, Takao Murakami, Tsumoru Shimada, Nobutoshi Tanaka, Hiroshi Wada, Yumi Kurokawa-Nose
Publikováno v:
Chemical and Pharmaceutical Bulletin. 41:930-932
A novel 2-tetralol-type xyloside, named asplenoside, was isolated from the fronds of Asplenium wilfordii. The structure was determined as (6R)-5, 6, 7, 8-tetrahydro-6-β-D-xylopyranosyloxy-2-naphthalenecarboxylic acid by chemical and spectral means.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b30d9277210a8cb436bfc7d811dd52b9
https://doi.org/10.1248/cpb.41.930
https://doi.org/10.1248/cpb.41.930
Autor:
Yasuhisa Saiki, Takao Murakami, Chiuming Chen, Hiroshi Wada, Nobutoshi Tanaka, Tsunehiro Kido
Publikováno v:
Chemical and Pharmaceutical Bulletin. 40:2099-2101
Four lignans, blechnic acid (1), 7-epiblechnic acid (3), 8-epiblechnic acid (6) and brainic acid (2), were isolated from six Blechnaceous ferns, Blechnum orientale, Struthiopteris amabilis, S. niponica, Woodwardia orientalis, W. prolifera and Brainea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e81ff46d0766fa3b1fbd31316ff905d
https://doi.org/10.1248/cpb.40.2099
https://doi.org/10.1248/cpb.40.2099