Toshiharu Ohta

2.1k citations

79 papers · 1.7k indexed · h-index 24

Co-authors: Koichi Shudo Atsushi Yamamoto Tatsuhiko Aizawa Junyou Yang Kiyoshi Nakayama Toshihiko Okamoto Haruko C. Kawato Ving J. Lee
Topics: Synthesis and Biological Evaluation (13 papers)Synthesis and Reactions of Organic Compounds (11 papers)Chemical Reaction Mechanisms (10 papers)
Cited by: Molecular Medicine Organic Chemistry Pharmaceutical Science
Journals: Journal of the American Chemical Society Journal of Medicinal Chemistry The Journal of Organic Chemistry
Partner nations: Japan United States Germany

In The Last Decade

Toshiharu Ohta

77 papers receiving 1.6k citations

Peers

Countries citing papers authored by Toshiharu Ohta

Since Specialization

Citations

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

Fields of papers citing papers by Toshiharu Ohta

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Toshiharu Ohta

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Digital confocal imaging of breast cancer using UWB-CMOS integrated circuits 2015 ·European Conference on Antennas and Propagation ·Takamaro Kikkawa,(unknown),Kenji Hashimoto,(unknown),(unknown),(unknown),Xia Xiao,Akihiro Toya,(unknown),(unknown),E. Suematsu,(unknown),Hiromasa Watanabe,Toshiharu Ohta	1
2	2-Aminomethylphenylamine as a novel scaffold for factor Xa inhibitor 2011 ·Bioorganic & Medicinal Chemistry ·(unknown),Tsutomu Nagata,(unknown),Makoto Suzuki,Toshiharu Ohta	6
3	Design, synthesis and SAR of novel ethylenediamine and phenylenediamine derivatives as factor Xa inhibitors 2011 ·Bioorganic & Medicinal Chemistry Letters ·Kenji Yoshikawa,Toshiharu Yoshino,Yoshihiro Yokomizo,Kouichi Uoto,Hiroyuki Naito,Katsuhiro Kawakami,(unknown),Tsutomu Nagata,Makoto Suzuki,(unknown),Makoto Takemura,Toshiharu Ohta	10
4	Orally active zwitterionic factor Xa inhibitors with long duration of action 2011 ·Bioorganic & Medicinal Chemistry Letters ·(unknown),Tsutomu Nagata,(unknown),Daisuke Takano,(unknown),Makoto Suzuki,Toshiharu Ohta	1
5	Arsenic speciation in marine product samples: Comparison of extraction–HPLC method and digestion–cryogenic trap method 2009 ·Talanta ·Wenhua Geng,(unknown),Toshiharu Ohta,Tsunenori Nakajima,Hirokazu Takanashi,Akira Ohki	30
6	Enantioselective Synthesis of Piperidine Diamine Derivatives as Novel fXa Inhibitors 2008 ·Heterocycles ·(unknown),Hiroyuki Naito,Yumi Nakamoto,Kouichi Uoto,Toshiharu Ohta	2
7	Design, synthesis, and biological activity of piperidine diamine derivatives as factor Xa inhibitor 2007 ·Bioorganic & Medicinal Chemistry Letters ·(unknown),Yumi Nakamoto,Hiroyuki Naito,Kouichi Uoto,Toshiharu Ohta	33
8	MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 4: Addressing the problem of poor stability due to photoisomerization of an acrylic acid moiety 2004 ·Bioorganic & Medicinal Chemistry Letters ·Kiyoshi Nakayama,(unknown),Masami Ohtsuka,Yoshihiro Yokomizo,Atsunobu Sakamoto,Haruko C. Kawato,Kenichi Yoshida,Toshiharu Ohta,Kazuki Hoshino,(unknown),(unknown),Hiroko Ishida,Aesop Cho,Monica H. Palme,Jason Z. Zhang,Ving J. Lee,William J. Watkins	43
9	MexAB-OprM-Specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 1: Discovery and early strategies for lead optimization 2003 ·Bioorganic & Medicinal Chemistry Letters ·Kiyoshi Nakayama,Yohei Ishida,Masami Ohtsuka,Haruko C. Kawato,Ken‐ichi Yoshida,Yoshihiro Yokomizo,Shigeru Hosono,Toshiharu Ohta,Kazuki Hoshino,Hiroko Ishida,Kumi Yoshida,Thomas E. Renau,Roger Léger,Jason Z. Zhang,Ving J. Lee,William J. Watkins	66
10	MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 2: achieving activity in vivo through the use of alternative scaffolds 2003 ·Bioorganic & Medicinal Chemistry Letters ·Kiyoshi Nakayama,Yohei Ishida,Masami Ohtsuka,Haruko C. Kawato,Kenichi Yoshida,Yoshihiro Yokomizo,Toshiharu Ohta,Kazuki Hoshino,Tsuyoshi Otani,(unknown),Kumi Yoshida,Hiroko Ishida,Ving J. Lee,Thomas E. Renau,William J. Watkins	48
11	Conformationally-restricted analogues of efflux pump inhibitors that potentiate the activity of levofloxacin in Pseudomonas aeruginosa 2003 ·Bioorganic & Medicinal Chemistry Letters ·Thomas E. Renau,Roger Léger,(unknown),Eric M. Flamme,Michael Wang,Rose Yen,(unknown),David E. Griffith,Suzanne Chamberland,Michael N. Dudley,Ving J. Lee,Olga Lomovskaya,William J. Watkins,Toshiharu Ohta,Kiyoshi Nakayama,Yohei Ishida	76
12	MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 3: Optimization of potency in the pyridopyrimidine series through the application of a pharmacophore model 2003 ·Bioorganic & Medicinal Chemistry Letters ·Kiyoshi Nakayama,Haruko C. Kawato,Jun Watanabe,Masami Ohtsuka,Kenichi Yoshida,Yoshihiro Yokomizo,Atsunobu Sakamoto,(unknown),Toshiharu Ohta,Kazuki Hoshino,Kumi Yoshida,Hiroko Ishida,Aesop Cho,Monica H. Palme,Jason Z. Zhang,Ving J. Lee,William J. Watkins	55
13	Crystal structure and thermoelectric properties of ReSi_1.75 silicide 2002 ·MRS Proceedings ·(unknown),Kosuke Kuwabara,Katsushi Tanaka,H. Inui,M. Yamaguchi,Atsushi Yamamoto,Toshiharu Ohta,H. Obara	8
14	Addressing the stability of C-capped dipeptide efflux pump inhibitors that potentiate the activity of levofloxacin in Pseudomonas aeruginosa 2001 ·Bioorganic & Medicinal Chemistry Letters ·Thomas E. Renau,Roger Léger,Eric M. Flamme,(unknown),(unknown),(unknown),Olga Lomovskaya,Suzanne Chamberland,Ving J. Lee,Toshiharu Ohta,Kiyoshi Nakayama,Yohei Ishida	50
15	Effects of interface layer on thermoelectric properties of a pn junction prepared via the BMA-HP method 2001 ·Materials Science and Engineering B ·Junyou Yang,Tatsuhiko Aizawa,Atsushi Yamamoto,Toshiharu Ohta	32
16	Deletion of Alal44-Lysl45 in Thermus thermophilus Inorganic Pyrophosphatase Suppresses Thermal Aggregation 1999 ·The Journal of Biochemistry ·Toshihiko Satoh,(unknown),Masaaki Ono,Masakazu Hattori,Toshiharu Ohta,M. Watanabe,(unknown),Yoshimitsu Takahashi,Lee Js,(unknown)	1
17	Inhibitors of Efflux Pumps in Pseudomonas aeruginosa Potentiate the Activity of the Fluoroquinolone Antibacterial Levofloxacin 1999 ·Journal of Medicinal Chemistry ·Thomas E. Renau,Roger Léger,Eric M. Flamme,Joan Sangalang,(unknown),Rose Yen,(unknown),David Griffith,Suzanne Chamberland,Olga Lomovskaya,Scott J. Hecker,Ving J. Lee,Toshiharu Ohta,Kiyoshi Nakayama	219
18	Position sensitive radiation detector using a heterojunction of amorphous and crystalline silicon 1990 ·Nuclear Physics B - Proceedings Supplements ·Yasuo Chiba,I. Endo,(unknown),T. Ohsugi,Shinsuke Okada,S. Asai,Yuho Hirata,Y. Kitano,Toshiharu Ohta,Kazuhiro Seki,Toshihiko Yokoyama,(unknown),F. Takasaki	1
19	A Regioselective Synthesis Method of Tri- and Tetrahalogenoindoles and Its Application for the Total Syntheses of Marine Alkaloids 1989 ·Heterocycles ·Masanori Somei,Toshiharu Ohta	3
20	Reactions of 4-Hydroxy-2H-1,4-benzoxazin-3-one Derivatives with Some Nucleophiles 1978 ·Heterocycles ·Yuichi Hashimoto,Toshiharu Ohta,Koichi Shudo,Toshihiko Okamoto	2

About Toshiharu Ohta

Toshiharu Ohta is a scholar working on Organic Chemistry, Molecular Medicine and Pharmaceutical Science, having authored 79 papers that have together received 1.7k indexed citations. Recurring topics across this work include Synthesis and Biological Evaluation (13 papers), Synthesis and Reactions of Organic Compounds (11 papers) and Chemical Reaction Mechanisms (10 papers). The work is most often cited by research in Molecular Medicine (408 citations), Organic Chemistry (655 citations) and Pharmaceutical Science (113 citations). Toshiharu Ohta has collaborated with scholars based in Japan, United States and Germany. Frequent co-authors include Koichi Shudo, Atsushi Yamamoto, Tatsuhiko Aizawa, Junyou Yang, Kiyoshi Nakayama, Toshihiko Okamoto, Haruko C. Kawato, Ving J. Lee, Tomohiko Ohwada and Thomas E. Renau. Their work appears in journals such as Journal of the American Chemical Society, Journal of Medicinal Chemistry and The Journal of Organic Chemistry.

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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