Keiji Hemmi

707 total citations
32 papers, 572 citations indexed

About

Keiji Hemmi is a scholar working on Organic Chemistry, Molecular Biology and Oncology. According to data from OpenAlex, Keiji Hemmi has authored 32 papers receiving a total of 572 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Organic Chemistry, 14 papers in Molecular Biology and 6 papers in Oncology. Recurrent topics in Keiji Hemmi's work include Antimicrobial Peptides and Activities (6 papers), Chemical Synthesis and Analysis (5 papers) and Peptidase Inhibition and Analysis (5 papers). Keiji Hemmi is often cited by papers focused on Antimicrobial Peptides and Activities (6 papers), Chemical Synthesis and Analysis (5 papers) and Peptidase Inhibition and Analysis (5 papers). Keiji Hemmi collaborates with scholars based in Japan, United Kingdom and India. Keiji Hemmi's co-authors include J. Wade Harper, James C. Powers, Masashi Hashimoto, H. TAKENO, Takashi Kamiya, Ichiro Shima, Satoshi Okada, Yoshihiko Kitaura, Keisuke Imai and M. ARATANI and has published in prestigious journals such as Journal of the American Chemical Society, Biochemistry and Journal of Medicinal Chemistry.

In The Last Decade

Keiji Hemmi

31 papers receiving 529 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Keiji Hemmi Japan 12 299 249 82 74 63 32 572
John E. Toth United States 14 464 1.6× 245 1.0× 185 2.3× 48 0.6× 86 1.4× 30 793
Kesavan Radika United States 13 321 1.1× 133 0.5× 60 0.7× 49 0.7× 32 0.5× 15 616
James H. Williams Australia 20 523 1.7× 358 1.4× 55 0.7× 54 0.7× 49 0.8× 41 933
J. A. Stock United Kingdom 11 319 1.1× 222 0.9× 71 0.9× 23 0.3× 66 1.0× 30 583
Dale A. Stringfellow United States 13 255 0.9× 198 0.8× 110 1.3× 72 1.0× 179 2.8× 24 705
Frederick Cohen United States 18 384 1.3× 373 1.5× 71 0.9× 40 0.5× 61 1.0× 31 810
N.D. Jones United States 10 363 1.2× 202 0.8× 56 0.7× 38 0.5× 122 1.9× 19 649
Manfred Gerken Germany 12 459 1.5× 304 1.2× 118 1.4× 48 0.6× 66 1.0× 21 682
Sompong Wattanasin Switzerland 16 359 1.2× 468 1.9× 86 1.0× 35 0.5× 110 1.7× 33 787
Todd L. Graybill United States 16 414 1.4× 351 1.4× 125 1.5× 32 0.4× 75 1.2× 29 818

Countries citing papers authored by Keiji Hemmi

Since Specialization
Citations

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

Fields of papers citing papers by Keiji Hemmi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keiji Hemmi

This figure shows the co-authorship network connecting the top 25 collaborators of Keiji Hemmi. A scholar is included among the top collaborators of Keiji Hemmi 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 Keiji Hemmi. Keiji Hemmi 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.
2.
Neya, Masahiro, Daijiro Hagiwara, Keiji Hemmi, & Masashi Hashimoto. (1989). Total synthesis of urogastrone (human epidermal growth factor, h-EGF). Part 2. Synthesis of urogastrone having the structure proposed for the natural compound. Journal of the Chemical Society Perkin Transactions 1. 2199–2199.
3.
Ando, Takeshi, Satoshi Okada, Itsuo Uchida, et al.. (1987). WF-10129, a novel angiotensin converting enzyme inhibitor produced by a fungus, Doratomyces putredinis.. The Journal of Antibiotics. 40(4). 468–475. 7 indexed citations
4.
Hemmi, Keiji, et al.. (1987). Synthesis of nocardicins from penicillins.. Chemical and Pharmaceutical Bulletin. 35(8). 3464–3466. 2 indexed citations
5.
Shima, Ichiro, et al.. (1987). Diketopiperazines as a new class of platelet-activating factor inhibitors. Journal of Medicinal Chemistry. 30(10). 1706–1709. 9 indexed citations
6.
Shima, Ichiro, et al.. (1987). Diketopiperazine derivatives, a new series of platelet-activating factor inhibitors.. Chemical and Pharmaceutical Bulletin. 35(8). 3527–3530. 12 indexed citations
7.
Okada, Satoshi, H. TAKENO, Keiji Hemmi, Yoshihiko Kitaura, & Masashi Hashimoto. (1985). Synthesis and adjuvant activity of FK-156 analogues: Acyl derivatives of N-(N2-(L-alanyl-.GAMMA.-D-glutamyl)-2(L),2'(D)-diamino-1-pimeloyl)glycine.. Chemical and Pharmaceutical Bulletin. 33(2). 889–892. 7 indexed citations
8.
Hemmi, Keiji, J. Wade Harper, & James C. Powers. (1985). Inhibition of human leukocyte elastase, cathepsin G, chymotrypsin A.alpha., and porcine pancreatic elastase with substituted isobenzofuranones and benzopyrandiones. Biochemistry. 24(8). 1841–1848. 19 indexed citations
9.
TAKENO, H., Satoshi Okada, Keiji Hemmi, et al.. (1984). Studies on structure-activity relationships of FK-156, an immunostimulating peptide, and related compounds. I. Synthesis of stereoisomeric analogues of FK-156.. Chemical and Pharmaceutical Bulletin. 32(8). 2925–2931. 6 indexed citations
10.
Kitaura, Yoshihiko, H. TAKENO, Satoshi Okada, et al.. (1982). Synthesis and immunostimulating activity of FK-156 analogues: Fatty acid derivatives of N-(N.ALPHA.-(.GAMMA.-D-glutamyl)-L-lysyl)-D-alanine.. Chemical and Pharmaceutical Bulletin. 30(8). 3065–3068. 2 indexed citations
11.
Hemmi, Keiji, et al.. (1982). An efficient method for selective amino acid protection of meso-2,2′-diaminodicarboxylic acid: An improved synthesis of FK-156. Tetrahedron Letters. 23(6). 693–696. 4 indexed citations
12.
Hagiwara, Daijiro, M. ARATANI, Keiji Hemmi, & Masashi Hashimoto. (1981). Synthesis of 2-oxocephalosporins. Tetrahedron. 37(4). 703–707. 1 indexed citations
13.
Hemmi, Keiji, H. TAKENO, Masashi Hashimoto, & Takashi Kamiya. (1981). Studies on phosphonic acid antibiotics. III. Structure and synthesis of 3-(N-acetyl-N-hydroxyamino)propylphosphonic acid (FR-900098) and 3-(N-acetyl-N-hydroxyamino)-2(R)-hydroxypropylphosphonic acid (FR-33289). Chemical and Pharmaceutical Bulletin. 29(3). 646–650. 13 indexed citations
14.
Hemmi, Keiji, et al.. (1981). Total synthesis of FK-156 isolated from a Streptomyces as an immunostimulating peptide: application of a novel copper chelate amino protection. Journal of the American Chemical Society. 103(23). 7026–7028. 24 indexed citations
15.
Hagiwara, Daijiro, H. TAKENO, M. ARATANI, Keiji Hemmi, & Masashi Hashimoto. (1980). Synthesis and antibacterial activity of new 1-oxa-1-dethiacephalosporins. Journal of Medicinal Chemistry. 23(10). 1108–1113. 5 indexed citations
16.
17.
ARATANI, M., Daijiro Hagiwara, H. TAKENO, Keiji Hemmi, & Masashi Hashimoto. (1980). Synthesis of 1-oxa-2-oxocephalosporins. The Journal of Organic Chemistry. 45(18). 3682–3686. 9 indexed citations
18.
Kamiya, Takashi, Keiji Hemmi, H. TAKENO, & Masashi Hashimoto. (1980). Studies on phosphonic acid antibiotics. I. Structure and synthesis of 3-(n-acetyl-n-hydroxyamino)propylphosphonic acid (FR-900098) and its n-formyl analogue (FR-31564). Tetrahedron Letters. 21(1). 95–98. 41 indexed citations
19.
Hemmi, Keiji, Hideo Nakai, Shunji Naruto, & Osamu Yonemitsu. (1972). Slow ring-inversion of the nine-membered lactam in 4-azabicyclo[5,2,2]-undeca-8,10-dien-3-one systems. Journal of the Chemical Society Perkin Transactions 2. 2252–2252. 2 indexed citations
20.
Okuno, Yohmei, Keiji Hemmi, & Osamu Yonemitsu. (1972). Photocyclization of N-Chloroacetyl-3-methoxyphenethylamine and N-Chloroacetyl-3, 5-dimethoxyphenethylamine.. Chemical and Pharmaceutical Bulletin. 20(6). 1164–1169. 2 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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