Patrick J. Jansen

427 total citations
18 papers, 262 citations indexed

About

Patrick J. Jansen is a scholar working on Organic Chemistry, Analytical Chemistry and Molecular Biology. According to data from OpenAlex, Patrick J. Jansen has authored 18 papers receiving a total of 262 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Organic Chemistry, 7 papers in Analytical Chemistry and 6 papers in Molecular Biology. Recurrent topics in Patrick J. Jansen's work include Analytical Methods in Pharmaceuticals (7 papers), Chemical Synthesis and Analysis (4 papers) and Analytical Chemistry and Chromatography (3 papers). Patrick J. Jansen is often cited by papers focused on Analytical Methods in Pharmaceuticals (7 papers), Chemical Synthesis and Analysis (4 papers) and Analytical Chemistry and Chromatography (3 papers). Patrick J. Jansen collaborates with scholars based in United States, Switzerland and Italy. Patrick J. Jansen's co-authors include Steven W. Baertschi, Mark A. Nussbaum, Steven R. Maple, Douglas E. Dorman, Solveig Kristensen, Hanne Hjorth Tønnesen, David Clapham, Allen C. Templeton, Bernard A. Olsen and Mark D. Mowery and has published in prestigious journals such as Angewandte Chemie International Edition, Journal of Pharmaceutical Sciences and Journal of Pharmaceutical and Biomedical Analysis.

In The Last Decade

Patrick J. Jansen

17 papers receiving 254 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Patrick J. Jansen United States 8 98 91 74 45 40 18 262
Fenghe Qiu United States 8 96 1.0× 76 0.8× 81 1.1× 14 0.3× 71 1.8× 22 280
G. Hendriks Netherlands 11 84 0.9× 71 0.8× 94 1.3× 31 0.7× 12 0.3× 13 340
L. K. Ravindranath India 10 65 0.7× 114 1.3× 65 0.9× 38 0.8× 168 4.2× 46 365
Birgit Hakkarainen Sweden 8 75 0.8× 38 0.4× 141 1.9× 13 0.3× 81 2.0× 10 316
Michael Chlenov United States 10 103 1.1× 47 0.5× 85 1.1× 14 0.3× 64 1.6× 21 263
Tadakazu Tokumura Japan 14 95 1.0× 83 0.9× 122 1.6× 56 1.2× 30 0.8× 42 442
Thomas Backensfeld Germany 10 117 1.2× 75 0.8× 113 1.5× 32 0.7× 44 1.1× 12 450
Valentino J. Stella United States 12 105 1.1× 57 0.6× 96 1.3× 33 0.7× 58 1.4× 15 433
Philippe Berben Belgium 10 73 0.7× 53 0.6× 108 1.5× 31 0.7× 27 0.7× 11 434
Ahmed Abdulhafez Hamad Egypt 16 266 2.7× 346 3.8× 68 0.9× 149 3.3× 23 0.6× 45 556

Countries citing papers authored by Patrick J. Jansen

Since Specialization
Citations

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

Fields of papers citing papers by Patrick J. Jansen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Patrick J. Jansen. 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 Patrick J. Jansen. The network helps show where Patrick J. Jansen may publish in the future.

Co-authorship network of co-authors of Patrick J. Jansen

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

All Works

18 of 18 papers shown
1.
Jansen, Patrick J., et al.. (2025). A Convergent Hybrid Gram‐Scale Synthesis of Tirzepatide: Tangential Flow Filtration Assisted Native Chemical Ligation‐Desulfurization Approach. Angewandte Chemie International Edition. 65(6). e20060–e20060.
2.
Jansen, Patrick J., John F. Moomaw, Keith A. Williams, et al.. (2025). A Novel Hybrid SPPS/LPPS Strategy for the Synthesis of Tirzepatide via Native Chemical Ligation. ChemRxiv. 1 indexed citations
3.
Jansen, Patrick J., John F. Moomaw, Keith A. Williams, et al.. (2025). A Novel Hybrid SPPS/LPPS Strategy for the Synthesis of Tirzepatide via Native Chemical Ligation. ChemRxiv. 1 indexed citations
4.
Baertschi, Steven W., Leonardo R. Allain, Steven Hostyn, et al.. (2023). Pharmaceutical Forced Degradation (Stress Testing) Endpoints: A Scientific Rationale and Industry Perspective. Journal of Pharmaceutical Sciences. 112(12). 2948–2964. 27 indexed citations
5.
Campbell, John M., Xiaoming Wang, Leonardo R. Allain, et al.. (2021). Assessing the Relevance of Solution Phase Stress Testing of Solid Dosage Form Drug Products: A Cross-Industry Benchmarking Study. Journal of Pharmaceutical Sciences. 111(2). 298–305. 5 indexed citations
6.
Baertschi, Steven W., et al.. (2019). The Degradation Chemistry of Prasugrel Hydrochloride: Part 1—Drug Substance. Journal of Pharmaceutical Sciences. 108(9). 2842–2857. 6 indexed citations
7.
Jansen, Patrick J., et al.. (2017). Mechanistic Studies of the N-formylation of Edivoxetine, a Secondary Amine-Containing Drug, in a Solid Oral Dosage Form. Journal of Pharmaceutical Sciences. 106(5). 1218–1238. 6 indexed citations
8.
Jansen, Patrick J., et al.. (2016). Determination of the Degradation Chemistry of the Antitumor Agent Pemetrexed Disodium. Journal of Pharmaceutical Sciences. 105(11). 3256–3268. 11 indexed citations
9.
Baertschi, Steven W., et al.. (2016). Formation of copper(I) from trace levels of copper(II) as an artifactual impurity in the HPLC analysis of olanzapine. Journal of Pharmaceutical and Biomedical Analysis. 125. 186–193. 7 indexed citations
10.
Nefliu, Marcela, Patrick J. Jansen, Gregory W. Sluggett, et al.. (2015). Artifacts Generated During Azoalkane Peroxy Radical Oxidative Stress Testing of Pharmaceuticals Containing Primary and Secondary Amines. Journal of Pharmaceutical Sciences. 104(12). 4287–4298. 7 indexed citations
11.
Strege, Mark A., Evan M. Hetrick, Allison L. Dill, et al.. (2015). Assessing the Risk of Formation of Potential Genotoxic Degradation Products in a Small-Molecule Kinase Inhibitor Drug Substance and Drug Product. Organic Process Research & Development. 19(11). 1458–1464. 4 indexed citations
12.
Baertschi, Steven W., Patrick J. Jansen, William K. Smith, et al.. (2014). Investigation of the Mechanism of Racemization of Litronesib in Aqueous Solution: Unexpected Base‐Catalyzed Inversion of a Fully Substituted Carbon Chiral Center. Journal of Pharmaceutical Sciences. 103(9). 2797–2808. 5 indexed citations
13.
14.
Baertschi, Steven W., David Clapham, Patrick J. Jansen, et al.. (2013). Implications of In-Use Photostability: Proposed Guidance for Photostability Testing and Labeling to Support the Administration of Photosensitive Pharmaceutical Products, Part 1: Drug Products Administered by Injection. Journal of Pharmaceutical Sciences. 102(11). 3888–3899. 43 indexed citations
15.
Baertschi, Steven W., et al.. (2007). Isolation, Identification, and Synthesis of Two Oxidative Degradation Products of Olanzapine (LY170053) in Solid Oral Formulations. Journal of Pharmaceutical Sciences. 97(2). 883–892. 20 indexed citations
16.
Nussbaum, Mark A., Steven W. Baertschi, & Patrick J. Jansen. (2002). Determination of relative UV response factors for HPLC by use of a chemiluminescent nitrogen-specific detector. Journal of Pharmaceutical and Biomedical Analysis. 27(6). 983–993. 38 indexed citations
17.
Jansen, Patrick J., et al.. (2000). The Degradation of the Antitumor Agent Gemcitabine Hydrochloride in an Acidic Aqueous Solution at pH 3.2 and Identification of Degradation Products. Journal of Pharmaceutical Sciences. 89(7). 885–891. 17 indexed citations
18.

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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