Sumio Umezawa

4.4k total citations
278 papers, 3.1k citations indexed

About

Sumio Umezawa is a scholar working on Organic Chemistry, Molecular Biology and Pharmacology. According to data from OpenAlex, Sumio Umezawa has authored 278 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 187 papers in Organic Chemistry, 122 papers in Molecular Biology and 94 papers in Pharmacology. Recurrent topics in Sumio Umezawa's work include Carbohydrate Chemistry and Synthesis (107 papers), Microbial Natural Products and Biosynthesis (65 papers) and Synthesis and Biological Activity (30 papers). Sumio Umezawa is often cited by papers focused on Carbohydrate Chemistry and Synthesis (107 papers), Microbial Natural Products and Biosynthesis (65 papers) and Synthesis and Biological Activity (30 papers). Sumio Umezawa collaborates with scholars based in Japan, Belarus and United Kingdom. Sumio Umezawa's co-authors include Tsutomu Tsuchiya, HAMAO UMEZAWA, Kuniaki Tatsuta, Mitsuhiro Kinoshita, Yasushi Takagi, Yoshio Nishimura, Mitsuhiro Kinoshita, TOMIO TAKEUCHI, Shinkiti Koto and Daishiro Ikeda and has published in prestigious journals such as Journal of the American Chemical Society, Journal of Clinical Oncology and The Journal of Organic Chemistry.

In The Last Decade

Sumio Umezawa

264 papers receiving 2.7k citations

Peers

Countries citing papers authored by Sumio Umezawa

Since Specialization

Citations

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

Fields of papers citing papers by Sumio Umezawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sumio Umezawa

This figure shows the co-authorship network connecting the top 25 collaborators of Sumio Umezawa. A scholar is included among the top collaborators of Sumio Umezawa 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 Sumio Umezawa. Sumio Umezawa 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	Combination of consecutive low-dose cisplatin with bleomycin, vincristine, and mitomycin for recurrent cervical carcinoma. 1998 ·Journal of Clinical Oncology ·Yoshio Shimizu, Futoshi Akiyama, Sumio Umezawa, (unknown), (unknown), K Hasumi	13
2	Efficacy of a combination of irinotecan (CPT-11) with mitomycin-C (MMC) for clear cell carcinoma of the ovary (OCCA) which is intrinsically platinum-resistant 1997 ·European Journal of Cancer ·(unknown), Sumio Umezawa, K Hasumi, Kenji Yamauchi, Steven G. Silverberg	1
3	Synthesis of 5-deoxy-5-fluoro- and 5-deoxy-5,5-difluoro-netilmicin 1993 ·Carbohydrate Research ·(unknown), Tsutomu Tsuchiya, (unknown), Sumio Umezawa	7
4	Synthesis of low-toxicity, 5-deoxy-5-fluoro and 5-deoxy-5,5-difluoro derivatives of arbekacin and its analogs, and study of structure-toxicity relationships 1993 ·Carbohydrate Research ·Tsutomu Tsuchiya, (unknown), Sumio Umezawa, TOMIO TAKEUCHI, MASA HAMADA, (unknown), (unknown)	12
5	Synthesis of 7-O-(2,6-dideoxy-2-fluoro-4-O-(3-fluorotetrahydropyran-2-yl)-.ALPHA.-L-talopyranosyl)daunomycinone. 1992 ·The Journal of Antibiotics ·Yasushi Takagi, (unknown), Tsutomu Tsuchiya, Sumio Umezawa, TOMIO TAKEUCHI	12
6	Recent Studies on the Synthesis of Anthracycline Antibiotics in our Laboratory. 1992 ·Journal of Synthetic Organic Chemistry Japan ·Yasushi Takagi, Tsutomu Tsuchiya, Toshiaki Miyake, TOMIO TAKEUCHI, Sumio Umezawa	2
7	Synthesis of 3′-deoxy-3′-fluorokanamycin A and 3′,4′-dideoxy-3′-fluorokanamycin A 1991 ·Carbohydrate Research ·Yoshiaki Takahashi, Tsutomu Tsuchiya, Sumio Umezawa, HAMAO UMEZAWA	15
8	Syntheses and antitumor activities of 7-O-(3-amino-2,3,6-trideoxy-2-fluoro-.ALPHA.-L-talopyranosyl)daunomycinone and -adriamycinone. 1989 ·The Journal of Antibiotics ·Yasushi Takagi, Haeil Park, Tsutomu Tsuchiya, Sumio Umezawa, TOMIO TAKEUCHI, (unknown), (unknown)	12
9	Syntheses and antitumor activities of 7-O-(6-deoxy-2-O-methyl-.ALPHA.-L-talopyranosyl)-daunomycinone and -adriamycione. 1989 ·The Journal of Antibiotics ·Yasushi Takagi, Naoki Kobayashi, Tsutomu Tsuchiya, Sumio Umezawa, TOMIO TAKEUCHI, (unknown), (unknown)	0
10	Synthesis and antitumor activities of 14-O-acyl derivatives of 7-O-(2,6-dideoxy-2-fluoro-.ALPHA.-l-talopyranosyl) adriamycinone. 1988 ·The Journal of Antibiotics ·Tsutomu Tsuchiya, Yasushi Takagi, Sumio Umezawa, TOMIO TAKEUCHI, (unknown), (unknown), HAMAO UMEZAWA, (unknown), (unknown)	15
11	Syntheses of 6"-Deoxy-6"-fluorokanamycin A, 6"-Deoxy-6"-fluoroamikacin, and 1-N-((R)- and (RS)-3-Amino-2-fluoropropanoyl)kanamycins. 1985 ·NIPPON KAGAKU KAISHI ·Yasushi Takagi, (unknown), Sumio Umezawa	4
12	1982 ·Journal of Synthetic Organic Chemistry Japan ·Sumio Umezawa	0
13	1- and 3-Deamidino derivatives of dihydrostreptomycin and some 1-N-acyl derivatives. 1978 ·The Journal of Antibiotics ·Takayuki Usui, Tsutomu Tsuchiya, Sumio Umezawa	3
14	Benzylation of 3-(γ-Dimethylamino-propoxy)-1H-indazole in Liquid Ammonia 1972 ·Journal of Synthetic Organic Chemistry Japan ·(unknown), (unknown), Seiji Hashimoto, Sumio Umezawa	0
15	Synthesis and Structures of Aminoglycosides 1970 ·Journal of Synthetic Organic Chemistry Japan ·Sumio Umezawa	0
16	Studies on Indazolone Derivatives 1970 ·Journal of Synthetic Organic Chemistry Japan ·(unknown), (unknown), Kazuo Okada, Sumio Umezawa	1
17	The Synthesis of Cyclic α-Amino Acids. II 1969 ·Bulletin of the Chemical Society of Japan ·Mitsuhiro Kinoshita, Hiroaki Yanagisawa, (unknown), Eisuke Kaji, Sumio Umezawa	3
18	Recent Progress of the Chemistry of Antibiotics 1960 ·Journal of Synthetic Organic Chemistry Japan ·Sumio Umezawa	1
19	A new antifungal antibiotic, pentamycin. 1958 ·PubMed ·Sumio Umezawa, Yoshitake Tanaka, (unknown), (unknown)	11
20	Synthetic Studies on Thiothreonine. I 1951 ·Nippon kagaku zassi ·Mitsuhiro Kinoshita, Sumio Umezawa	4

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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