Discovery of 4-anilino-N-methylthieno[3,2-d]pyrimidines and 4-anilino-N-methylthieno[2,3-d]pyrimidines as potent apoptosis inducers
作者:William Kemnitzer、Nilantha Sirisoma、Chris May、Ben Tseng、John Drewe、Sui Xiong Cai
DOI:10.1016/j.bmcl.2009.04.145
日期:2009.7
We report the discovery of N-((benzo[d][1,3]dioxol-5-yl)methyl)-6-phenylthieno[3,2-d] pyrimidin-4-amine (2a) as an apoptosis inducer using our proprietary cell-and caspase-based ASAP HTS assay, and SAR study of HTS hit 2a which led to the discovery of 4-anilino-N-methylthieno[3,2-d] pyrimidines and 4-anilino-N-methylthieno[2,3-d] pyrimidines as potent apoptosis inducers. Compounds 5d and 5e were the most potent with EC50 values of 0.008 and 0.004 mu M in T47D human breast cancer cells, respectively. Compound 5d was found to be highly active in the MX-1 breast cancer model. Functionally, compounds 5d and 5e both induced apoptosis through inhibition of tubulin polymerization. (C) 2009 Elsevier Ltd. All rights reserved.