Jun Niijima

640 total citations
12 papers, 544 citations indexed

About

Jun Niijima is a scholar working on Organic Chemistry, Molecular Biology and Biotechnology. According to data from OpenAlex, Jun Niijima has authored 12 papers receiving a total of 544 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Organic Chemistry, 5 papers in Molecular Biology and 3 papers in Biotechnology. Recurrent topics in Jun Niijima's work include Synthetic Organic Chemistry Methods (5 papers), Cancer therapeutics and mechanisms (3 papers) and Marine Sponges and Natural Products (3 papers). Jun Niijima is often cited by papers focused on Synthetic Organic Chemistry Methods (5 papers), Cancer therapeutics and mechanisms (3 papers) and Marine Sponges and Natural Products (3 papers). Jun Niijima collaborates with scholars based in Japan. Jun Niijima's co-authors include Yoshihiko Kotake, Kentaro Yoshimatsu, Nozomu Koyanagi, Hiroyuki Sugumi, Kyosuke Kitoh, Hiroshi Yoshino, Takeshi Nagasu, Kappei Tsukahara, Makoto Asada and Norihiro Ueda and has published in prestigious journals such as Angewandte Chemie International Edition, Cancer Research and Journal of Medicinal Chemistry.

In The Last Decade

Jun Niijima

12 papers receiving 529 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jun Niijima Japan	11	359	259	71	55	48	12	544
Bernat Vidal Spain	20	559 1.6×	238 0.9×	102 1.4×	17 0.3×	34 0.7×	39	773
Paul S. Watson United States	13	717 2.0×	267 1.0×	28 0.4×	130 2.4×	44 0.9×	16	837
Allyn T. Londregan United States	15	599 1.7×	258 1.0×	20 0.3×	37 0.7×	27 0.6×	27	780
Maria Fridén‐Saxin Sweden	10	343 1.0×	127 0.5×	27 0.4×	142 2.6×	28 0.6×	12	495
Peiran Chen China	14	295 0.8×	330 1.3×	44 0.6×	14 0.3×	9 0.2×	29	507
Motomichi Kono Japan	11	311 0.9×	227 0.9×	12 0.2×	58 1.1×	26 0.5×	33	504
José A. Gómez-Vidal Spain	16	277 0.8×	301 1.2×	7 0.1×	34 0.6×	66 1.4×	30	623
Douglas Kalvin United States	13	239 0.7×	213 0.8×	57 0.8×	26 0.5×	43 0.9×	19	404
Paul Eastwood Spain	13	261 0.7×	105 0.4×	29 0.4×	15 0.3×	20 0.4×	25	353
Terrence L. Smalley United States	12	263 0.7×	224 0.9×	34 0.5×	21 0.4×	79 1.6×	20	551

Countries citing papers authored by Jun Niijima

Since Specialization

Citations

This map shows the geographic impact of Jun Niijima'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 Jun Niijima with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Jun Niijima more than expected).

Fields of papers citing papers by Jun Niijima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jun Niijima. 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 Jun Niijima. The network helps show where Jun Niijima may publish in the future.

Co-authorship network of co-authors of Jun Niijima

This figure shows the co-authorship network connecting the top 25 collaborators of Jun Niijima. A scholar is included among the top collaborators of Jun Niijima 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 Jun Niijima. Jun Niijima is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

12 of 12 papers shown

1.

Yamamoto, Eiichi, Jun Niijima, & Naoki Asakawa. (2013). Selective determination of potential impurities in an active pharmaceutical ingredient using HPLC-SPE-HPLC. Journal of Pharmaceutical and Biomedical Analysis. 84. 41–47. 15 indexed citations

2.

Itoh, Daisuke, Mitsuo Nagai, Jun Niijima, et al.. (2007). Total Synthesis of the Potent Antitumor Macrolides Pladienolide B and D. Angewandte Chemie International Edition. 46(46). 8734–8734. 4 indexed citations

3.

Itoh, Daisuke, Mitsuo Nagai, Jun Niijima, et al.. (2007). Total Synthesis of the Potent Antitumor Macrolides Pladienolide B and D. Angewandte Chemie. 119(23). 4428–4433. 13 indexed citations

4.

Asai, Naoki, Yoshihiko Kotake, Jun Niijima, et al.. (2007). Stereochemistry of Pladienolide B. The Journal of Antibiotics. 60(6). 364–369. 30 indexed citations

5.

Itoh, Daisuke, Mitsuo Nagai, Jun Niijima, et al.. (2007). Total Synthesis of the Potent Antitumor Macrolides Pladienolide B and D. Angewandte Chemie International Edition. 46(23). 4350–4355. 73 indexed citations

6.

Niijima, Jun, Yoshihiko Kotake, Mitsuo Nagai, et al.. (2004). E7107, a new 7-urethane derivative of pladienolide D: Discovery of a novel antitumor agent. Cancer Research. 64. 691–691. 18 indexed citations

7.

Kamata, Junichi, Yoshihiko Kotake, Jun Niijima, et al.. (2004). Synthesis and Evaluation of Novel Pyrimido-Acridone, -Phenoxadine, and -Carbazole as Topoisomerase II Inhibitors. Chemical and Pharmaceutical Bulletin. 52(9). 1071–1081. 27 indexed citations

8.

Nakamura, Katsuji, Toshimitsu Uenaka, Takeshi Nagasu, et al.. (2003). A novel carbazole topoisomerase II poison, ER‐37328: potent tumoricidal activity against human solid tumors in vitro and in vivo. Cancer Science. 94(1). 119–124. 15 indexed citations

9.

Nakamura, Katsuji, Hiroyuki Sugumi, Atsumi Yamaguchi, et al.. (2002). Antitumor activity of ER-37328, a novel carbazole topoisomerase II inhibitor.. PubMed. 1(3). 169–75. 21 indexed citations

10.

Harada, Hitoshi, Osamu Asano, Yorihisa Hoshino, et al.. (2000). 2-Alkynyl-8-aryl-9-methyladenines as Novel Adenosine Receptor Antagonists: Their Synthesis and Structure−Activity Relationships toward Hepatic Glucose Production Induced via Agonism of the A_2BReceptor. Journal of Medicinal Chemistry. 44(2). 170–179. 98 indexed citations

11.

Yoshino, Hiroshi, Norihiro Ueda, Jun Niijima, et al.. (1992). Novel sulfonamides as potential, systemically active antitumor agents. Journal of Medicinal Chemistry. 35(13). 2496–2497. 208 indexed citations

12.

Nakayama, Juzo, et al.. (1987). Generation and Dienophilic reactivity of α-oxoselenoaldehydes and ketones. Tetrahedron Letters. 28(38). 4423–4426. 22 indexed citations

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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