Leon H. Zalkow

3.4k total citations · 1 hit paper
116 papers, 2.8k citations indexed

About

Leon H. Zalkow is a scholar working on Molecular Biology, Organic Chemistry and Oncology. According to data from OpenAlex, Leon H. Zalkow has authored 116 papers receiving a total of 2.8k indexed citations (citations by other indexed papers that have themselves been cited), including 60 papers in Molecular Biology, 41 papers in Organic Chemistry and 15 papers in Oncology. Recurrent topics in Leon H. Zalkow's work include Plant Toxicity and Pharmacological Properties (18 papers), Cancer Treatment and Pharmacology (14 papers) and Natural product bioactivities and synthesis (11 papers). Leon H. Zalkow is often cited by papers focused on Plant Toxicity and Pharmacological Properties (18 papers), Cancer Treatment and Pharmacology (14 papers) and Natural product bioactivities and synthesis (11 papers). Leon H. Zalkow collaborates with scholars based in United States, Israel and Netherlands. Leon H. Zalkow's co-authors include Robert T. Abraham, Garth Powis, Leslie T. Gelbaum, Curtis L. Ashendel, Howard M. Deutsch, Rosanne Bonjouklian, Alfred Gallegos, Gerald B. Grindey, Margareta Berggren and Jeffrey A. Dodge and has published in prestigious journals such as Journal of the American Chemical Society, Nature Medicine and Biochemical and Biophysical Research Communications.

In The Last Decade

Leon H. Zalkow

114 papers receiving 2.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Wortmannin, a potent and selective inhibitor of phosphatidylinositol-3-kinase.

1994 611 citations Garth Powis, Rosanne Bonjouklian et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Leon H. Zalkow United States	25	1.4k	633	381	315	303	116	2.8k
David Maltby United States	33	2.5k 1.8×	397 0.6×	294 0.8×	216 0.7×	77 0.3×	67	3.9k
Gemma Fabriàs Spain	42	2.9k 2.1×	694 1.1×	106 0.3×	188 0.6×	138 0.5×	159	4.7k
Angela J. Russell United Kingdom	41	2.3k 1.6×	1.7k 2.6×	521 1.4×	263 0.8×	198 0.7×	141	4.7k
Annie Heitz France	33	2.4k 1.7×	698 1.1×	583 1.5×	229 0.7×	81 0.3×	84	3.1k
Francis Schuber France	41	3.2k 2.3×	547 0.9×	340 0.9×	487 1.5×	41 0.1×	153	5.3k
Scott G. Stewart Australia	31	1.6k 1.1×	1.4k 2.2×	188 0.5×	296 0.9×	116 0.4×	88	3.5k
F. Bordin Italy	24	685 0.5×	609 1.0×	419 1.1×	146 0.5×	80 0.3×	80	1.7k
Jennette A. Sakoff Australia	32	1.4k 1.0×	838 1.3×	164 0.4×	549 1.7×	367 1.2×	116	3.3k
Brigitte Meunier France	36	2.5k 1.7×	190 0.3×	400 1.0×	125 0.4×	324 1.1×	123	3.8k
Kung‐Tsung Wang Taiwan	20	1.8k 1.3×	526 0.8×	130 0.3×	145 0.5×	35 0.1×	141	2.9k

Countries citing papers authored by Leon H. Zalkow

Since Specialization

Citations

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

Fields of papers citing papers by Leon H. Zalkow

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Leon H. Zalkow. 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 Leon H. Zalkow. The network helps show where Leon H. Zalkow may publish in the future.

Co-authorship network of co-authors of Leon H. Zalkow

This figure shows the co-authorship network connecting the top 25 collaborators of Leon H. Zalkow. A scholar is included among the top collaborators of Leon H. Zalkow 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 Leon H. Zalkow. Leon H. Zalkow 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

Slupe, Andrew M., Henry A. Charlier, Don L. Warner, et al.. (2009). Synthesis of 3-[(N-carboalkoxy)ethylamino]-indazole-dione derivatives and their biological activities on human liver carbonyl reductase. Bioorganic & Medicinal Chemistry. 18(1). 134–141. 19 indexed citations

Bakare, Oladapo, Curtis L. Ashendel, Hairuo Peng, Leon H. Zalkow, & Edward M. Burgess. (2003). Synthesis and MEK1 inhibitory activities of imido-Substituted 2-chloro-1,4-naphthoquinones. Bioorganic & Medicinal Chemistry. 11(14). 3165–3170. 26 indexed citations

Peng, Hairuo, et al.. (2000). 3β-Hydroxy-6-aza-cholestane and related analogues as phosphatidylinositol specific phospholipase C (PI-PLC) inhibitors with antitumor activity. Bioorganic & Medicinal Chemistry. 8(4). 699–706. 17 indexed citations

Peng, Hairuo, et al.. (2000). Steroidal derived acids as inhibitors of human Cdc25A protein phosphatase. Bioorganic & Medicinal Chemistry. 8(2). 299–306. 14 indexed citations

Peng, Hairuo, Leon H. Zalkow, Robert T. Abraham, & Garth Powis. (1998). Novel CDC25A Phosphatase Inhibitors from Pyrolysis of 3-α-Azido-B-homo-6-oxa-4-cholesten-7-one on Silica Gel. Journal of Medicinal Chemistry. 41(24). 4677–4680. 24 indexed citations

Hudson, J. B., et al.. (1996). Antiviral activity of a derivative of the photosensitive compound Hypericin. Phytomedicine. 3(2). 185–190. 19 indexed citations

Lackman-Smith, Carol, John P. Bader, William G. Rice, et al.. (1996). Inhibition of human immunodeficiency virus replication by the sulfonated stilbene dye resobene. Antiviral Research. 33(1). 41–53. 14 indexed citations

Powis, Garth, Alfred Gallegos, Robert T. Abraham, et al.. (1994). Increased intracellular Ca2+ signaling caused by the antitumor agent helenalin and its analogues. Cancer Chemotherapy and Pharmacology. 34(4). 344–350. 13 indexed citations

Deutsch, Howard M., Margaret M. Schweri, Christopher T. Culbertson, & Leon H. Zalkow. (1992). Synthesis and pharmacology of irreversible affinity labels as potential cocaine antagonists: aryl 1,4-dialkylpiperazines related to GBR-12783. European Journal of Pharmacology. 220(2-3). 173–180. 20 indexed citations

10.

HAUGWITZ, R. D., et al.. (1992). Quinobene, a new potent anti-HIV agent. Biochemical and Biophysical Research Communications. 187(3). 1409–1417. 13 indexed citations

11.

Zalkow, Leon H., et al.. (1991). Acetylanonamine, a New Secopyrrolizidine Alkaloid from Senecio anonymus. Journal of Natural Products. 54(5). 1425–1426. 5 indexed citations

12.

Zalkow, Leon H., et al.. (1989). Extraction of monocrotaline from Crotalaria spectabilis using supercritical carbon dioxide and carbon dioxide–ethanol mixtures. Biotechnology and Bioengineering. 34(11). 1357–1365. 12 indexed citations

13.

Deutsch, Howard M., Jan A. Gliński, M. Hernández, et al.. (1989). Synthesis of congeners and prodrugs. 3. Water-soluble prodrugs of taxol with potent antitumor activity. Journal of Medicinal Chemistry. 32(4). 788–792. 193 indexed citations

14.

Gliński, Jan A., et al.. (1989). Pyrrolizidine Alkaloids from Cynoglossum creticum. Synthesis of the Pyrrolizidine Alkaloids Echinatine, Rinderine, and Analogues. Journal of Natural Products. 52(1). 109–118. 22 indexed citations

15.

Zalkow, Leon H., et al.. (1988). Macrocyclic Pyrrolizidine Alkaloids from Senecio anonymus. Separation of a Complex Alkaloid Extract Using Droplet Counter-Current Chromatography. Journal of Natural Products. 51(4). 690–702. 20 indexed citations

16.

Zalkow, Leon H., Jan A. Gliński, Leslie T. Gelbaum, et al.. (1988). Semisynthetic pyrrolizidine alkaloid N-oxide antitumor agents. Esters of heliotridine. Journal of Medicinal Chemistry. 31(8). 1520–1526. 7 indexed citations

17.

Howard, Ralph W., et al.. (1982). Cuticular hydrocarbons ofReticulitermes virginicus (Banks) and their role as potential species- and caste-recognition cues. Journal of Chemical Ecology. 8(9). 1227–1239. 133 indexed citations

18.

Zalkow, Leon H., et al.. (1981). Chemical ecology ofReticulitermes flavipes (Kollar) andR. virginicus (Banks) (Rhinotermitidae). Journal of Chemical Ecology. 7(4). 717–731. 27 indexed citations

19.

Zalkow, Leon H., et al.. (1969). Stereospecific synthesis of trans- and cis-2-isopropyl-3-hydroxy-5-acetyl-2,3-dihydrobenzofuran (dihydrotoxol). Dihydrobenzofuran derivatives in which J(sub trans-2,3)> J(sub cis-2,3). The Journal of Organic Chemistry. 34(6). 1646–1650. 21 indexed citations

20.

Waller, George R., et al.. (1968). Biosynthesis of monoterpenoids bySantolina chamaecyparissus L.. Phytochemistry. 7(2). 213–220. 10 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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