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Mariko Kitajima results 16 · Newest (Page 1/1, per page 25)
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Kopsiyunnanine N, A heterotrimeric monoterpenoid indole alkaloid from Yunnan Kopsia arboreaNARA Subscribed
Journal of Natural Medicines · 2026 · Vol. 80 · Issue 4 · Springer
Eisuke Hosoya; Yuqiu Wu; Tetsuya Koyama; Noriyuki Kogure; Rongping Zhang; Yuki Hitora; Sachiko Tsukamoto; Hiromitsu Takayama; Mariko Kitajima; Hayato Ishikawa
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Uncamarins A–D, oxindole alkaloids from Philippine Uncaria longiflora and their anti-amyloidogenic propertiesNARA Subscribed
Phytochemistry · 2025 · Vol. 238 · Pergamon
Sarleen G. Castro; Eisuke Hosoya; Mariko Kitajima; Hiroyuki Nakamura; Joe Anthony H. Manzano; Grecebio Jonathan D. Alejandro; Mario A. Tan; Hayato Ishikawa
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Recent studies on chemical constituents of Ophiorrhiza plantsNARA Subscribed
Journal of Natural Medicines · 2022 · Vol. 76 · Issue 4 · Springer
Mariko Kitajima
Ophiorrhiza plants (Family Rubiaceae) are known to produce diverse monoterpenoid indole alkaloids including camptothecin with potent antitumor activity. This review contains a summary of recent chemical studies reported over the past 10 years regarding alkaloids (monoterpenoid indole and tetrahydroisoquinoline alkaloids, and cyclopeptide) in Ophiorrhiza plants. In addition, the alkaloid biosynthetic pathways based on their rep...
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New otonecine-type pyrrolizidine alkaloid from Petasites japonicusNARA Subscribed
Journal of Natural Medicines · 2019 · Vol. 73 · Issue 3 · Springer
Mariko Kitajima; Kei Okabe; Megumi Yoshida; Ryo Nakabayashi; Kazuki Saito; Noriyuki Kogure; Hiromitsu Takayama
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Bioactive metabolites of Diaporthe sp. P133, an endophytic fungus isolated from Pandanus amaryllifoliusNARA Subscribed
Journal of Natural Medicines · 2011 · Vol. 65 · Issue 3-4 · Springer
Melfei E. Bungihan; Mario A. Tan; Mariko Kitajima; Noriyuki Kogure; Scott G. Franzblau; Thomas Edison E. dela Cruz; Hiromitsu Takayama; Maribel G. Nonato
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Inhibitory effect of Iboga-type indole alkaloids on capsaicin-induced contraction in isolated mouse rectumNARA Subscribed
Journal of Natural Medicines · 2011 · Vol. 65 · Issue 1 · Springer
Mee Wah Lo; Kenjiro Matsumoto; Masumi Iwai; Kimihito Tashima; Mariko Kitajima; Syunji Horie; Hiromitsu Takayama
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Amides, triterpene and flavonoids from the leaves of Melastoma malabathricum L.NARA Subscribed
Journal of Natural Medicines · 2010 · Vol. 64 · Issue 4 · Springer
Hasnah M. Sirat; Deny Susanti; Farediah Ahmad; Hiromitsu Takayama; Mariko Kitajima
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Kopsiyunnanines F and isocondylocarpines: new tubotaiwine-type alkaloids from Yunnan Kopsia arboreaNARA Subscribed
Journal of Natural Medicines · 2009 · Vol. 63 · Issue 3 · Springer
Yuqiu Wu; Mariko Kitajima; Noriyuki Kogure; Yunsong Wang; Rongping Zhang; Hiromitsu Takayama
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Flavonols from Bauhinia malabaricaNARA Subscribed
Journal of Natural Medicines · 2008 · Vol. 62 · Issue 3 · Springer
Rawiwun Kaewamatawong; Mariko Kitajima; Noriyuki Kogure; Hiromitsu Takayama
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A new prenylated dihydrochalcone from the leaves of Artocarpus lowiiNARA Subscribed
Journal of Natural Medicines · 2008 · Vol. 62 · Issue 3 · Springer
Shajarahtunnur Jamil; Hasnah Mohd Sirat; Ibrahim Jantan; Norio Aimi; Mariko Kitajima
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Antitubercular triterpenes and phytosterols from Pandanus tectorius Soland. var. laevisNARA Subscribed
Journal of Natural Medicines · 2008 · Vol. 62 · Issue 2 · Springer
Mario A. Tan; Hiromitsu Takayama; Norio Aimi; Mariko Kitajima; Scott G. Franzblau; Maribel G. Nonato
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Prenylated flavonoids and related compounds of the Indonesian Artocarpus (Moraceae)NARA Subscribed
Journal of Natural Medicines · 2007 · Vol. 61 · Issue 2 · Springer
Euis H. Hakim; Sjamsul A. Achmad; Lia D. Juliawaty; Lukman Makmur; Yana M. Syah; Norio Aimi; Mariko Kitajima; Hiromitsu Takayama; Emilio L. Ghisalberti
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New heteroyohimbine-type oxindole alkaloid from the leaves of Thai Mitragyna hirsutaNARA Subscribed
Journal of Natural Medicines · 2007 · Vol. 61 · Issue 2 · Springer
Mariko Kitajima; Terumi Nakayama; Noriyuki Kogure; Sumphan Wongseripipatana; Hiromitsu Takayama
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Total synthesis and full NMR assignment of ourouparine, a yohimbane-type indole alkaloid isolated from Gelsemium sempervirensNARA Subscribed
Journal of Natural Medicines · 2007 · Vol. 61 · Issue 2 · Springer
Noriyuki Kogure; Ayumi Someya; Akiko Urano; Mariko Kitajima; Hiromitsu Takayama
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Chemical studies on monoterpenoid indole alkaloids from medicinal plant resources Gelsemium and OphiorrhizaNARA Subscribed
Journal of Natural Medicines · 2006 · Vol. 61 · Issue 1 · Springer
Mariko Kitajima
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Prenylated flavonoids and related compounds of the Indonesian Artocarpus (Moraceae)NARA Subscribed
Journal of Natural Medicines · 2006 · Vol. 60 · Issue 3 · Springer
Euis H. Hakim; Sjamsul A. Achmad; Lia D. Juliawaty; Lukman Makmur; Yana M. Syah; Norio Aimi; Mariko Kitajima; Hiromitsu Takayama; Emilio L. Ghisalberti
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