Substituted 4-amino-1H-pyrazolo[3,4-d]pyrimidines as multi-targeted inhibitors of insulin-like growth factor-1 receptor (IGF1R) and members of ErbB-family receptor kinases |
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Authors: | Gary T Wang Robert A Mantei Robert D Hubbard Julie L Wilsbacher Qian Zhang Lora Tucker Xiaoming Hu Peter Kovar Eric F Johnson Donald J Osterling Jennifer Bouska Jieyi Wang Steven K Davidsen Randy L Bell George S Sheppard |
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Institution: | Global Pharmaceutical Research and Development, Abbott Laboratories, Abbott Park, IL 60064, USA |
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Abstract: | This Letter describes the lead discovery, optimization, and biological characterization of a series of substituted 4-amino-1H-pyrazolo3,4-d]pyrimidines as potent inhibitors of IGF1R, EGFR, and ErbB2. The leading compound 11 showed an IGF1R IC50 of 12 nM, an EGFR (L858R) IC50 of 31 nM, and an ErbB2 IC50 of 11 nM, potent activity in cellular functional and anti-proliferation assays, as well as activity in an in vivo pharmacodynamic assay. |
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