4-{[(7r)-8-Cyclopentyl-7-Ethyl-5-Methyl-6-Oxo-5,6,7,8-Tetrahydropteridin-2-Yl]amino}-3-Methoxy-N-(1-Methylpiperidin-4-Yl)benzamide
BI 2536 is under investigation in clinical trial NCT00376623 (Efficacy and Safety of BI 2536 in Advanced or Metastatic Non Small Cell Lung Cancer).