Design, synthesis, and biological evaluation of novel deguelin-based heat shock protein 90 (HSP90) inhibitors targeting proliferation and angiogenesis - Chang, D J; An, H; Kim, K; Kim, H H; Jung, J; Lee, J M; Kim, N J; Han, Y T; Yun, H; Lee, S; Lee, G; Lee, S; Lee, J S; Cha, J H; Park, J H; Park, J W; Lee, S C; Kim, S G; Kim, J H; Lee, H Y; Kim, K W; Suh, Y G (J Med Chem, 2012)