Toyo Kaiya

856 total citations
58 papers, 684 citations indexed

About

Toyo Kaiya is a scholar working on Molecular Biology, Organic Chemistry and Plant Science. According to data from OpenAlex, Toyo Kaiya has authored 58 papers receiving a total of 684 indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Molecular Biology, 18 papers in Organic Chemistry and 11 papers in Plant Science. Recurrent topics in Toyo Kaiya's work include Natural product bioactivities and synthesis (16 papers), Bioactive Natural Diterpenoids Research (12 papers) and Phytochemistry and Biological Activities (11 papers). Toyo Kaiya is often cited by papers focused on Natural product bioactivities and synthesis (16 papers), Bioactive Natural Diterpenoids Research (12 papers) and Phytochemistry and Biological Activities (11 papers). Toyo Kaiya collaborates with scholars based in Japan, India and United States. Toyo Kaiya's co-authors include Jinsaku Sakakibara, Kohfuku Kohda, Naohiro Shirai, Makoto Naoi, Wakako Maruyama, P. Dostert, Toyokazu Ohki, Kohfuku Kohda, Yutaka Kawazoe and Yasuhiro Noda and has published in prestigious journals such as Journal of Medicinal Chemistry, Tetrahedron and Phytochemistry.

In The Last Decade

Toyo Kaiya

57 papers receiving 654 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Toyo Kaiya Japan 14 401 177 103 74 70 58 684
Hisashi Kojima Japan 14 592 1.5× 341 1.9× 43 0.4× 47 0.6× 103 1.5× 29 867
Leonard Lermer Canada 8 377 0.9× 141 0.8× 134 1.3× 32 0.4× 49 0.7× 9 711
Christian Herhaus Germany 5 636 1.6× 100 0.6× 152 1.5× 56 0.8× 53 0.8× 7 855
N. Boyer France 16 383 1.0× 222 1.3× 272 2.6× 28 0.4× 30 0.4× 25 792
Wang-Fun Fong Hong Kong 15 401 1.0× 56 0.3× 59 0.6× 36 0.5× 93 1.3× 17 674
W. L. Fowlks United States 9 252 0.6× 118 0.7× 105 1.0× 30 0.4× 42 0.6× 14 613
Harold J. Nicholas United States 17 601 1.5× 151 0.9× 48 0.5× 40 0.5× 30 0.4× 83 977
Konstantin Drandarov Switzerland 14 284 0.7× 124 0.7× 195 1.9× 41 0.6× 15 0.2× 38 633
T. Reichstein Switzerland 19 637 1.6× 152 0.9× 251 2.4× 59 0.8× 60 0.9× 65 1.2k
David S. Menaldino United States 17 870 2.2× 163 0.9× 301 2.9× 36 0.5× 31 0.4× 28 1.2k

Countries citing papers authored by Toyo Kaiya

Since Specialization
Citations

This map shows the geographic impact of Toyo Kaiya's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Toyo Kaiya with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Toyo Kaiya more than expected).

Fields of papers citing papers by Toyo Kaiya

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Toyo Kaiya. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Toyo Kaiya. The network helps show where Toyo Kaiya may publish in the future.

Co-authorship network of co-authors of Toyo Kaiya

This figure shows the co-authorship network connecting the top 25 collaborators of Toyo Kaiya. A scholar is included among the top collaborators of Toyo Kaiya based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Toyo Kaiya. Toyo Kaiya is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Noda, Yasuhiro, et al.. (2005). 1-amino-4-phenyl-1,2,3,6-tetrahydropyridine and 1-amino-4-phenylpyridinium salt, the 1-amino analogues of neurotoxins, MPTP and MPP+, induce apoptosis in PC12 cells: detection of apoptotic cells by Comet assay and flow cytometric analysis.. PubMed. 18(5). 561–9. 7 indexed citations
2.
Kaiya, Toyo, et al.. (2000). Reactions of a series of 1-Aminobenzimidazoles and 1-Amino-3-methylbenzimidazolium chlorides with 2,4-pentanedione. Bioorganic & Medicinal Chemistry. 8(1). 37–42. 5 indexed citations
3.
Kaiya, Toyo, et al.. (1998). Reactions of 7- and 9-aminoadenines with 2,4-pentanedione. Formation of new ring systems, pyridazino[6,1-f]purine and pyridazino[1,6-e]purine. Bioorganic & Medicinal Chemistry Letters. 8(16). 2197–2202. 5 indexed citations
4.
Noda, Yasuhiro, et al.. (1997). Enhanced Cytotoxicity of Some Triterpenes toward Leukemia L1210 Cells Cultured in Low pH Media: Possibility of a New Mode of Cell Killing.. Chemical and Pharmaceutical Bulletin. 45(10). 1665–1670. 28 indexed citations
5.
Deng, Yulin, Fumi Urano, Toyo Kaiya, et al.. (1997). Preparation of (R)-N-methylsalsolinol via reversed-phase high-performance liquid chromatography using β-cyclodextrin as a mobile-phase additive. Journal of Chromatography B Biomedical Sciences and Applications. 702(1-2). 245–248. 3 indexed citations
6.
Naoi, Makoto, Wakako Maruyama, P. Dostert, Kohfuku Kohda, & Toyo Kaiya. (1996). A novel enzyme enantio-selectively synthesizes (R)salsolinol, a precursor of a dopaminergic neurotoxin, N-methyl(R)salsolinol. Neuroscience Letters. 212(3). 183–186. 104 indexed citations
7.
Kaiya, Toyo, et al.. (1996). Electrophilic Amination of Adenines. Formation and Characteristics ofN-Aminoadenines. Nucleosides and Nucleotides. 15(1-3). 219–233. 10 indexed citations
8.
Ando, Hiroshi, Sally S. Twining, Jianbo Yue, et al.. (1993). MMPs and proteinase inhibitors in the human aqueous humor.. PubMed. 34(13). 3541–8. 61 indexed citations
9.
Sati, O. P., et al.. (1990). A New Saponin from Deeringia amaranthoides. Journal of Natural Products. 53(2). 466–469. 7 indexed citations
10.
Oh-hara, Toshinari, Yoshiaki Ikeda, Hiroshi Sakagami, et al.. (1990). Lignified natural products as potential medicinal resources. I. Potentiation of hemolytic plaque-forming cell production in mice.. Chemical and Pharmaceutical Bulletin. 38(1). 282–284. 4 indexed citations
11.
Jangwan, J. S., et al.. (1989). Clemontanoside-A, a bisglycoside from Clematis montana. Phytochemistry. 28(9). 2511–2513. 11 indexed citations
12.
Kawazoe, Yutaka, et al.. (1988). Oxidation of Acetylaminoquinolines in Udenfriend's Oxidation System. Heterocycles. 27(3). 645–645. 2 indexed citations
13.
Takahashi, Kazuhiko, Toyo Kaiya, & Yutaka Kawazoe. (1987). Structure-mutagenicity relationship among aminoquinolines, aza-analogues of naphthylamine, and their N-acetyl derivatives. Mutation Research/Genetic Toxicology. 187(4). 191–197. 14 indexed citations
14.
Kaiya, Toyo, Naohiro Shirai, & Yutaka Kawazoe. (1986). Proton and carbon-13 nuclear magnetic resonance chemical shift data for nitroquinolines and their N-oxides.. Chemical and Pharmaceutical Bulletin. 34(2). 881–885. 11 indexed citations
15.
Kaiya, Toyo & Jinsaku Sakakibara. (1985). Occurrence of pieroside C, a grayanotox-9-ene derivative, in Pieris japonica.. Chemical and Pharmaceutical Bulletin. 33(10). 4637–4639. 17 indexed citations
16.
Sakakibara, Jinsaku, et al.. (1983). 6β-Hydroxyursolic acid and other triterpenoids of Enkianthus cernuus. Phytochemistry. 22(11). 2553–2555. 63 indexed citations
17.
Sakakibara, Jinsaku, Naohiro Shirai, Toyo Kaiya, & Hisao Nakata. (1979). Grayanotoxin-XVIII and grayanoside B, a new a-nor-b-homo-ent-kaurene and its glucoside from Leucothoe grayana. Phytochemistry. 18(1). 135–137. 27 indexed citations
18.
Sakakibara, Jinsaku, Naohiro Shirai, Toyo Kaiya, & Hisao Nakata. (1978). Grayanoside A, a new diterpene glucoside from Leucothoe grayana. Phytochemistry. 17(9). 1672–1673. 6 indexed citations
19.
Sakakibara, Jinsaku, et al.. (1977). . Journal of Synthetic Organic Chemistry Japan. 35(5). 425–429.
20.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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