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Dive into the research topics where Hiromitsu Takayama is active.

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Featured researches published by Hiromitsu Takayama.


Phytochemistry | 1997

Anthraquinones from Morinda elliptica

Nor Hadiani Ismail; Abdul Manaf Ali; Norio Aimi; Mariko Kitajima; Hiromitsu Takayama; Nordin H. Lajis

Phytochemical studies on roots of Morinda elliptica have resulted in the isolation of a new anthraquinone, 2-formyl-1-hydroxyanthraquinone, and 10 known anthraquinones. The structures of the anthraquinones were established based on spectral studies.


Archive | 2004

Process for producing corosolic acid

Hiromitsu Takayama; Mariko Kitajima; Tomoko Ishizuka; Shujiro Seo


Natural product sciences | 2000

Anthraquinones from cell suspension culture of Morinda elliptica

Jasril; Nordin Hj. Lajis; M. A. Abdullah; Nor Hadiani Ismail; Abdul Manaf Ali; M. Marziah; A. B. Ariff; M. Kitajima; Hiromitsu Takayama; Norio Aimi


Archive | 1995

Anti-helicobacter pylori medicine

Norio Aimi; Hirokazu Hasegawa; Takashi Koyano; Shin-ichiro Sakai; Hiromitsu Takayama; 進一郎 坂井; 喬 小谷野; 則郎 相見; 弘和 長谷川; 廣光 高山


Archive | 2008

Opioid analgesic agent

Hiromitsu Takayama; Mariko Kitajima; Syunji Horie; Kenjiro Matsumoto


Archive | 2004

Method for production of corosolic acid

Tomoko Ishizuka; Mariko Kitajima; Shujiro Senoo; Hiromitsu Takayama; 満里子 北島; 修次郎 妹尾; 智子 石塚; 廣光 高山


Archive | 2013

Isolation and Identification of Vomifoliol from Two Endemic Philippine Rubiaceae Species, Psychotria gitingensis and Villaria odorata

Mario A. Tan; Jameson A. Eusebio; P. Villacorta; Noriyuki Kogure; Hiromitsu Takayama; Jonathan D. Alejandro


天然有機化合物討論会講演要旨集 | 2007

19 Total Synthesis of New Trimeric Indole Alkaloid, Psychotrimine

Yohei Matsuda; Mariko Kitajima; Hiromitsu Takayama


International Symposium on the Chemistry of Natural Products | 2006

P-258 GELSEIRIDONE AND GELSEFURANIDINE, NEW TYPE OF MONOTERPENOID INDOLE ALKALOIDS ISOLATED FROM Gelsemium elegans Benth

Noriyuki Kogure; Naoko Ishii; Mariko Kitajima; Sumphan Wongseripipatana; Hiromitsu Takayama


生薬學雜誌 | 2002

Camptothecin-related Alkaloids from Culture Medium of Hairy Roots of Ophiorrhiza pumila(Natural Medicine Note)

Mariko Kitajima; Minae Niwa; Chieko Yanagisawa; Hiromitsu Takayama; Hiroshi Sudo; Kazuki Saito; Norio Aimi

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Abdul Manaf Ali

Universiti Sultan Zainal Abidin

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Syunji Horie

Josai International University

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A. B. Ariff

Universiti Putra Malaysia

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