Ihor E. Kopka

854 total citations
19 papers, 493 citations indexed

About

Ihor E. Kopka is a scholar working on Organic Chemistry, Oncology and Cancer Research. According to data from OpenAlex, Ihor E. Kopka has authored 19 papers receiving a total of 493 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Organic Chemistry, 5 papers in Oncology and 5 papers in Cancer Research. Recurrent topics in Ihor E. Kopka's work include Peptidase Inhibition and Analysis (5 papers), Protease and Inhibitor Mechanisms (5 papers) and Asymmetric Synthesis and Catalysis (4 papers). Ihor E. Kopka is often cited by papers focused on Peptidase Inhibition and Analysis (5 papers), Protease and Inhibitor Mechanisms (5 papers) and Asymmetric Synthesis and Catalysis (4 papers). Ihor E. Kopka collaborates with scholars based in United States. Ihor E. Kopka's co-authors include Michael W. Rathke, Robert A. Zambias, Milton L. Hammond, William K. Hagmann, Charles G. Caldwell, Alice I. Marcy, Jeffrey D. Hermes, Catherine K. Smith, Philippe L. Durette and Scott P. Salowe and has published in prestigious journals such as Journal of the American Chemical Society, Biochemistry and Journal of Medicinal Chemistry.

In The Last Decade

Ihor E. Kopka

19 papers receiving 449 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ihor E. Kopka United States 12 305 144 100 99 45 19 493
Roland Billedeau Canada 13 272 0.9× 138 1.0× 58 0.6× 73 0.7× 22 0.5× 15 470
James H. Holms United States 14 428 1.4× 319 2.2× 142 1.4× 76 0.8× 33 0.7× 22 734
Robert A. Mantei United States 15 258 0.8× 308 2.1× 111 1.1× 95 1.0× 13 0.3× 24 621
Ken Yasui Japan 9 306 1.0× 162 1.1× 113 1.1× 133 1.3× 15 0.3× 10 504
H. Robin Heyman United States 14 275 0.9× 293 2.0× 136 1.4× 80 0.8× 25 0.6× 20 575
Said Elgendy United Kingdom 14 429 1.4× 122 0.8× 65 0.7× 27 0.3× 65 1.4× 23 530
Gregory A. Rener United States 11 336 1.1× 285 2.0× 93 0.9× 41 0.4× 22 0.5× 20 596
Hwa-Ok Kim United States 14 316 1.0× 306 2.1× 49 0.5× 37 0.4× 45 1.0× 32 520
James J. Kowalczyk United States 9 326 1.1× 330 2.3× 188 1.9× 32 0.3× 91 2.0× 10 669
Zhaoming Xiong China 12 326 1.1× 202 1.4× 65 0.7× 88 0.9× 32 0.7× 36 522

Countries citing papers authored by Ihor E. Kopka

Since Specialization
Citations

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

Fields of papers citing papers by Ihor E. Kopka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ihor E. Kopka. 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 Ihor E. Kopka. The network helps show where Ihor E. Kopka may publish in the future.

Co-authorship network of co-authors of Ihor E. Kopka

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

All Works

19 of 19 papers shown
1.
Kopka, Ihor E., Linus S. Lin, James P. Jewell, et al.. (2010). Synthesis and cannabinoid-1 receptor binding affinity of conformationally constrained analogs of taranabant. Bioorganic & Medicinal Chemistry Letters. 20(16). 4757–4761. 6 indexed citations
2.
Li, Bing, Stephen E. de Laszlo, Theodore M. Kamenecka, et al.. (2002). N-(Arylacetyl)-biphenylalanines as Potent VLA-4 Antagonists. Bioorganic & Medicinal Chemistry Letters. 12(16). 2141–2144. 10 indexed citations
3.
Esser, Craig K., Ihor E. Kopka, Philippe L. Durette, et al.. (1995). Inhibition of matrix metalloproteinases by N-carboxyalkyl peptides containing extended alkyl residues At P1'. Bioorganic & Medicinal Chemistry Letters. 5(6). 539–542. 11 indexed citations
4.
Sahoo, Soumya P., Charles G. Caldwell, Kevin T. Chapman, et al.. (1995). Inhibition of matrix metalloproteinases by N-carboxyalkyl dipeptides: Enhanced potency and selectivity with substituted P1′ homophenylalanines. Bioorganic & Medicinal Chemistry Letters. 5(20). 2441–2446. 20 indexed citations
5.
Chapman, Kevin T., Ihor E. Kopka, Philippe L. Durette, et al.. (1993). Inhibition of matrix metalloproteinases by N-carboxyalkyl peptides. Journal of Medicinal Chemistry. 36(26). 4293–4301. 52 indexed citations
6.
Salowe, Scott P., Alice I. Marcy, Catherine K. Smith, et al.. (1992). Characterization of zinc-binding sites in human stromelysin-1: stoichiometry of the catalytic domain and identification of a cysteine ligand in the proenzyme. Biochemistry. 31(19). 4535–4540. 66 indexed citations
7.
Durette, Philippe L., Ihor E. Kopka, Thomas J. Lanza, et al.. (1992). The inhibition of C5a receptor binding by analogs of L-156,602, a cyclic hexadepsipeptide antibiotic. Bioorganic & Medicinal Chemistry Letters. 2(9). 1033–1038. 3 indexed citations
8.
Hammond, Milton L., Robert A. Zambias, Michael N. Chang, et al.. (1990). Antioxidant-based inhibitors of leukotriene biosynthesis. The discovery of 6-[1-[2-(hydroxymethyl)phenyl]-1-propen-3-yl]-2,3-dihydro-5-benzofuranol, a potent topical antiinflammatory agent. Journal of Medicinal Chemistry. 33(3). 908–918. 43 indexed citations
9.
Kopka, Ihor E.. (1990). Selective semisynthetic modification of L-156,602, a novel cyclic hexadepsipeptide antibiotic. Tetrahedron Letters. 31(33). 4711–4714. 7 indexed citations
10.
Hammond, Milton L., Ihor E. Kopka, Robert A. Zambias, et al.. (1989). 2,3-Dihydro-5-benzofuranols as antioxidant-based inhibitors of leukotriene biosynthesis. Journal of Medicinal Chemistry. 32(5). 1006–1020. 31 indexed citations
11.
Zambias, Robert A., Charles G. Caldwell, Ihor E. Kopka, & Milton L. Hammond. (1988). A convenient synthesis of 4-tert-butyl-5-benzofuranols and dihydrobenzofuranols. The Journal of Organic Chemistry. 53(17). 4135–4137. 25 indexed citations
12.
Kopka, Ihor E.. (1988). A novel one-pot synthesis of substituted 4-t-butyldimethylsilyloxy-thiazoles. Tetrahedron Letters. 29(31). 3765–3768. 6 indexed citations
13.
Kopka, Ihor E., et al.. (1987). Preparation of hindered lithium amide bases and rates of their reaction with ether solvents. The Journal of Organic Chemistry. 52(3). 448–450. 21 indexed citations
14.
Kopka, Ihor E., Michael A. Nowak, & Michael W. Rathke. (1986). Dehydrohalogenation Reactions Using Hindered Lithium Dialkylamide Bases. Synthetic Communications. 16(1). 27–34. 9 indexed citations
15.
Leadbetter, Michael R., et al.. (1984). A total synthesis of (±)-dihydropalustrine. Tetrahedron Letters. 25(22). 2391–2394. 21 indexed citations
16.
Kopka, Ihor E. & Michael W. Rathke. (1981). Acylation of ketone silyl enol ethers with acetyl tetrafluoroborate. Synthesis of 1,3-diketones. The Journal of Organic Chemistry. 46(19). 3771–3773. 20 indexed citations
17.
Kopka, Ihor E., et al.. (1981). ChemInform Abstract: PREPARATION OF A SERIES OF HIGHLY HINDERED SECONDARY AMINES, INCLUDING BIS(TRIETHYLCARBINYL)AMINE. Chemischer Informationsdienst. 12(21). 5 indexed citations
18.
Kopka, Ihor E., et al.. (1980). Role of HMPT and TMEDA in control of enolate stereochemistry for reactions of lithium amides with 3-pentanone. Journal of the American Chemical Society. 102(11). 3959–3960. 66 indexed citations
19.
Kopka, Ihor E., et al.. (1980). Preparation of a series of highly hindered secondary amines, including bis(triethylcarbinyl)amine. The Journal of Organic Chemistry. 45(23). 4616–4622. 71 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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