Masami Ohtsuka

1.2k citations

27 papers · 945 indexed · h-index 17

Molecular Medicine top 2%
- Antibiotic Resistance in Bacteria 6
Organic Chemistry top 5%
- Carbohydrate Chemistry and Synthesis 9
- Synthetic Organic Chemistry Methods 4
- Chemical synthesis and alkaloids 4
Pharmacology top 5%
- Microbial Natural Products and Biosynthesis 4
Pharmacology top 5%
- Microbial Natural Products and Biosynthesis 4
Molecular Biology
- Cancer therapeutics and mechanisms 3
Ecology, Evolution, Behavior and Systematics
- Plant and fungal interactions 3
Biochemistry
- Traditional and Medicinal Uses of Annonaceae 3

Co-authors: Noritaka Chida Seiichiro Ogawa Kiyoshi Nakayama William J. Watkins Ving J. Lee Kazuki Hoshino Yoshihiro Yokomizo Ken‐ichi Yoshida
Cited by: Molecular Medicine Organic Chemistry Pharmacology
Journals: Chemical Communications (1 paper)The Journal of Organic Chemistry (2 papers)Tetrahedron (3 papers)
Partner nations: Japan United States Germany

In The Last Decade

Masami Ohtsuka

27 papers receiving 870 citations

Peers

Countries citing papers authored by Masami Ohtsuka

Since Specialization

Citations

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

Fields of papers citing papers by Masami Ohtsuka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Masami Ohtsuka, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Masami Ohtsuka Line = papers co-authored together Masami Ohtsuka links everyone, so they are left out of the graph.

All Works

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

20 of 20 papers shown

#	Work
1	Discovery of novel tricyclic compounds as squalene synthase inhibitors Bioorganic & Medicinal Chemistry ·Masanori Ichikawa,Masami Ohtsuka,Hitoshi Ohki,Noriyasu Haginoya,Masao Itoh,Kazuyuki Sugita,Hiroyuki Usui,Makoto Suzuki,Koji Terayama,Akira Kanda	2012	15
2	Comparison of Pharmacokinetics between Loxoprofen and Its Derivative with Lower Ulcerogenic Activity, Fluoro-loxoprofen Drug Metabolism and Pharmacokinetics ·Naoki Yamakawa,Shintaro Suemasu,Hiroshi Watanabe,Kayoko Tahara,Ken‐ichiro Tanaka,Yoshinari Okamoto,Masami Ohtsuka,Toru Maruyama,Tohru Mizushima	2012	15
3	Welwitindolinone C synthetic studies. Construction of the welwitindolinone carbon skeleton via a transannular nitrone cycloaddition Tetrahedron ·David Freeman,A.A. Holubec,Matthew W. Weiss,Julie A. Dixon,Akio Kakefuda,Masami Ohtsuka,Munenori Inoue,Rishi G. Vaswani,Hidenori Ohki,Brian D. Doan,Sarah E. Reisman,Brian M. Stoltz,Joshua Day,Ran Tao,N.A. Dieterich,John L. Wood	2010	38
4	MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 7: Highly soluble and in vivo active quaternary ammonium analogue D13-9001, a potential preclinical candidate Bioorganic & Medicinal Chemistry ·Ken‐ichi Yoshida,Kiyoshi Nakayama,Masami Ohtsuka,Noriko Kuru,Yoshihiro Yokomizo,Atsunobu Sakamoto,Makoto Takemura,Kazuki Hoshino,Hiroko Kanda,Hironobu Nitanai,Kenji Namba,Kumi Yoshida,Yuichiro Imamura,Jason Z. Zhang,Ving J. Lee,William J. Watkins	2007	108
5	MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 6: Exploration of aromatic substituents Bioorganic & Medicinal Chemistry ·Ken‐ichi Yoshida,Kiyoshi Nakayama,Yoshihiro Yokomizo,Masami Ohtsuka,Makoto Takemura,Kazuki Hoshino,Hiroko Kanda,Kenji Namba,Hironobu Nitanai,Jason Z. Zhang,Ving J. Lee,William J. Watkins	2006	48
6	MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 5: Carbon-substituted analogues at the C-2 position Bioorganic & Medicinal Chemistry ·Ken‐ichi Yoshida,Kiyoshi Nakayama,Noriko Kuru,Shozo Kobayashi,Masami Ohtsuka,Makoto Takemura,Kazuki Hoshino,Hiroko Kanda,Jason Z. Zhang,Ving J. Lee,William J. Watkins	2005	40
7	Synthesis of purin-2-yl carboxylate from O6-methylguanosine Nucleic Acids Symposium Series ·Tokumi Maruyama,Nobuyasu Moriwaka,Yosuke Demizu,Masami Ohtsuka	2005	2
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 Bioorganic & Medicinal Chemistry Letters ·Kiyoshi Nakayama,Noriko Kuru,Masami Ohtsuka,Yoshihiro Yokomizo,Atsunobu Sakamoto,Haruko C. Kawato,Kenichi Yoshida,Toshiharu Ohta,Kazuki Hoshino,Katsuya Akimoto,Junko Itoh,Hiroko Ishida,Aesop Cho,Monica H. Palme,Jason Z. Zhang,Ving J. Lee,William J. Watkins	2004	43
9	MexAB-OprM-Specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 1: Discovery and early strategies for lead optimization 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	2003	66
10	MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 2: achieving activity in vivo through the use of alternative scaffolds Bioorganic & Medicinal Chemistry Letters ·Kiyoshi Nakayama,Yohei Ishida,Masami Ohtsuka,Haruko C. Kawato,Kenichi Yoshida,Yoshihiro Yokomizo,Toshiharu Ohta,Kazuki Hoshino,Tsuyoshi Otani,Yuichi Kurosaka,Kumi Yoshida,Hiroko Ishida,Ving J. Lee,Thomas E. Renau,William J. Watkins	2003	48
11	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 Bioorganic & Medicinal Chemistry Letters ·Kiyoshi Nakayama,Haruko C. Kawato,Jun Watanabe,Masami Ohtsuka,Kenichi Yoshida,Yoshihiro Yokomizo,Atsunobu Sakamoto,Noriko Kuru,Toshiharu Ohta,Kazuki Hoshino,Kumi Yoshida,Hiroko Ishida,Aesop Cho,Monica H. Palme,Jason Z. Zhang,Ving J. Lee,William J. Watkins	2003	55
12	Total synthesis of paniculide A from d-glucose Tetrahedron ·Seiji Amano,Noriaki Takemura,Masami Ohtsuka,Seiichiro Ogawa,Noritaka Chida	1999	32
13	Total synthesis and absolute configuration of FR65814 Chemical Communications ·Seiji Amano,Noriko Ogawa,Masami Ohtsuka,Noritaka Chida	1998	9
14	Total Synthesis of (+)-7-Deoxypancratistatin and (+)-7-Deoxy-trans-dihydronarciclasine Heterocycles ·Noritaka Chida,Makoto Jitsuoka,Yoshiyuki Yamamoto,Masami Ohtsuka,Seiichiro Ogawa	1996	42
15	Synthesis of Optically Active Substituted Cyclohexenones from Carbohydrates by Catalytic Ferrier Rearrangement Bulletin of the Chemical Society of Japan ·Noritaka Chida,Masami Ohtsuka,Katsuyuki Ogura,Seiichiro Ogawa	1991	50
16	Stereoselective total synthesis of (+)-lycoricidine Tetrahedron Letters ·Noritaka Chida,Masami Ohtsuka,Seiichiro Ogawa	1991	59
17	Total Synthesis of Methoxyhygromycin and Its 5-Epimer Chemistry Letters ·Noritaka Chida,Keiichi Nakazawa,Masami Ohtsuka,Minoru Suzuki,Seiichiro Ogawa	1990	16
18	Total synthesis of hygromycin A Journal of the Chemical Society Chemical Communications ·Noritaka Chida,Masami Ohtsuka,Keiichi Nakazawa,Seiichiro Ogawa	1989	21
19	Synthesis of 2-Acetoxy-4-formylphenyl 2,3-Di-O-acetyl-6-deoxy-β-d-arabino-5-hexulofuranoside, Structure Confirmation of the Anomeric Configuration of Antibiotic Hygromycin A Chemistry Letters ·Noritaka Chida,Masami Ohtsuka,Seiichiro Ogawa	1988	6
20	Synthetic Studies on an Antitumor Antibiotic Bleomycin. A Synthetic Analogue Equivalent to Bleomycin in Activating Molecular Oxygen Heterocycles ·Masaji Ohno,Atsushi Kittaka,Yuichi Sugano,Masami Ohtsuka,Yukio Sugiura,HAMAO UMEZAWA	1986	3

About Masami Ohtsuka

Masami Ohtsuka is a scholar working on Molecular Medicine, Organic Chemistry and Pharmacology, having authored 27 papers that have together received 945 indexed citations. Recurring topics across this work include Carbohydrate Chemistry and Synthesis (9 papers), Antibiotic Resistance in Bacteria (6 papers), Microbial Natural Products and Biosynthesis (4 papers), Synthetic Organic Chemistry Methods (4 papers), Chemical synthesis and alkaloids (4 papers), Cancer therapeutics and mechanisms (3 papers), Plant and fungal interactions (3 papers) and Traditional and Medicinal Uses of Annonaceae (3 papers). The work is most often cited by research in Molecular Medicine (289 citations), Organic Chemistry (550 citations) and Pharmacology (148 citations). Masami Ohtsuka has collaborated with scholars based in Japan, United States and Germany. Frequent co-authors include Noritaka Chida, Seiichiro Ogawa, Kiyoshi Nakayama, William J. Watkins, Ving J. Lee, Kazuki Hoshino, Yoshihiro Yokomizo, Ken‐ichi Yoshida, Seiji Amano and Kumi Yoshida. Their work appears in journals such as Chemical Communications, The Journal of Organic Chemistry and Tetrahedron.

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.

Explore authors with similar magnitude of impact