Brad E. Sleebs*a,b, Ian P. Streeta,b, Xian Buc, Jonathan B. Baella,b a The Walter and Eliza Hall Institute of Medical
Research, 1G Royal Parade, Parkville, Victoria 3052,
Australia b Cancer Therapeutics-CRC P/L, 4 Research Ave, La Trobe R&D Park, Bundoora, Victoria
3086, Australia Fax: +61(3)93452129; e-Mail: sleebs@wehi.edu.au; c SYNthesis Med Chem P/L, 528
Ruiqing Road, Heqing, Zhangjiang Modern Medical Device Park, Shanghai
201203, P. R. of China