Synthesis and Biological Activities of Cyclic Peptide, Hymenamide Analogs

protein tyrosine kinase inhibitor cytotoxicity cytotoxicity protein tyrosine kinase inhibitor Synthesis and Biological Activities of Cyclic Peptide, Hymenamide Analogs Yasuhiro Shiki, Mika Onai, Daisuke Sugiyama, Satoshi Osada, Ichiro Fujita and Hiroaki Kodama Department of Chemistry, Faculty of Science and Engineering, Saga University, Saga 840-8502, Japan; Department of Pediatrics, Faculty of Medicine, Saga University, Saga 849-8501, Japan