Hiromitsu Takayama
Chiba University
246 Papers
1.8K Citations
Hiromitsu Takayama is an academic researcher from Chiba University. The author has contributed to research in topics: Indole alkaloid & Total synthesis. The author has an hindex of 43, co-authored 240 publications. Previous affiliations of Hiromitsu Takayama include National Institute of Radiological Sciences & University of Tokyo.
Chat about Author
Papers
Comparative studies of anthraquinone- and anthracene-tetraamines as blockers of N-methyl-D-aspartate receptors.
Lihua Jin,Hiromi Sugiyama,Miki Takigawa,Daisuke Katagiri,Hideyuki Tomitori,Kazuhiro Nishimura,Navneet Kaur,Otto Phanstiel,Mariko Kitajima,Hiromitsu Takayama,Tadashi Okawara,Keith Williams,Keiko Kashiwagi,Kazuei Igarashi +13 more
TL;DR: In this paper, the effects of both AQ and Ant-tetraamines were reversible and voltage-dependent on recombinant N-methyl-D-aspartate (NR) receptors.
28
A new gluco indole alkaloid, 3, 4-dehydro-5-carboxystrictosidine, from Peruvian Uña de Gato (Uncaria tomentosa).
Mariko Kitajima,Ken-ichiro Hashimoto,Masashi Yokoya,Hiromitsu Takayama,Norio Aimi,Shin-ichiro Sakai +5 more
TL;DR: A new gluco indole alkaloid was obtained from Peruvian Uña de Gato and a characteristic feature of the compound was the quick replacement of the methylene hydrogens on C-14 with deuterium that was observed when it was dissolved in CD3OD.
27
Two Oligostilbenes, cis- and trans-Diptoindonesin B, from Dryobalanops oblongifolia.
Yana M. Syah,Nanik Siti Aminah,Euis H. Hakim,Norio Aimi,Mariko Kitajima,Hiromitsu Takayama,Sjamsul A. Achmad +6 more
TL;DR: Two oligostilbenes, cis-and trans-diptoindonesin B, have been isolated from the tree bark of Dryobalanops oblongifolia (Dipterocarpaceae) as mentioned in this paper.
27
Two New Alkaloids from Crinum asiaticum var. sinicum
TL;DR: Two new alkaloids (1, 2) were isolated from the whole plants of Crinum asiaticum var.
27
Two new Aspidosperma indole alkaloids from Yunnan Kopsia arborea.
TL;DR: Two new indole alkaloids, kopsiyunnanines G and H, possessing the Aspidosperma skeleton were isolated from the aerial part of Yunnan Kopsia arborea BLUME (Apocynaceae) by means of MS and 2D NMR analyses.
26