The tumor microenvironment is characterized by hypoxia, low-nutrient levels, and acidosis. A natural product chemistry-based approach was used to discover small molecules that modulate adaptive responses to a hypoxic microenvironment through the hypoxia-inducible factor (HIF)-1 signaling pathways. Five compounds, such as baccharin (3), beturetol (4), kaempferide (5), isosakuranetin (6), and drupanin (9), that modulate HIF-1-dependent ...
[Jayakumar; Ajithabai; Santhosh; Veena; Nairt, Mangalam S. Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2003 , vol. 42, # 2 p. 429 - 431]