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Castle, Steven

Dr. Steven Castle



BS, Brigham Young University (1995)Ph.D., The Scripps Research Institute (2000)NIH Postdoctoral Fellow, UC Irvine (2000-2002)

Cancer Research

Our research is focused on the total synthesis of architecturally complex bioactive natural products and peptides. We believe that the structures of such compounds can serve as inspiration for the invention of new organic reactions and processes. Additionally, studies of their biological activity can increase our understanding of their modes of action, potentially leading to the design and development of new therapeutic agents. Other research areas include bioorganic, cancer research and medicinal and natural Products


58. Jackman, M. M.; Im, S.; Bohman, S. R.; Lo, C. C. L.; Garrity, A. L.; Castle, S. L.* “Synthesis of Functionalized Nitriles via Microwave-Promoted Fragmentations of Cyclic Iminyl Radicals.” Chem.–Eur. J. 2018, 24, 594–598.

57. Jalan, A.; Kastner, D. W.; Webber, K. G. I.; Smith, M. S.; Price, J. L.;* Castle, S. L.* “Bulky Dehydroamino Acids Enhance Proteolytic Stability and Folding in Beta-Hairpin Peptides.” Org. Lett. 2017, 19, 5190–5193.

51. Cai, Y.; Jalan, A.; Kubosumi, A. R.; Castle, S. L.* “Microwave-Promoted Tin-Free Iminyl Radical Cyclization with TEMPO Trapping: A Practical Synthesis of 2-Acylpyrroles.” Org. Lett. 2015, 17, 488–491.

49. Ma, Z.; Jiang, J.; Luo, S.; Cai, Y.; Cardon, J. M.; Kay, B. M.; Ess, D. H.;* Castle, S. L.* “Selective Access to E- and Z-ΔIle-Containing Peptides via a Stereospecific E2 Dehydration and an O → N Acyl Transfer.” Org. Lett. 2014, 16, 4044–4047.

36. Ma, B.; Banerjee, B.; Litvinov, D. N.; He, L.; Castle, S. L.* “Total Synthesis of the Antimitotic Bicyclic Peptide Celogentin C.” J. Am. Chem. Soc. 2010, 132, 1159–1171.

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