Szczepankiewicz, Bruce G.; Liu, Gang; Hajduk, Philip J.; Abad-Zapatero, Cele; Pei, Zhonghua; Xin, Zhili; Lubben, Thomas H.; Trevillyan, James M.; Stashko, Michael A.; Ballaron, Stephen J.; Liang, Heng; Huang, Flora; Hutchins, Charles W.; Fesik, Stephen W.; Jirousek, Michael R. Journal of the American Chemical Society, 2003 , vol. 125, # 14 p. 4087 - 4096