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6-Amino-3-methylpyrimidinones as Potent, Selective, and Orally Efficacious SHP2 Inhibitors.

Patrick SarverMichael AckerJeffrey T BagdanoffZhouliang ChenYing-Nan ChenHoman ChanBrant FirestoneMichelle FodorJorge FortanetHuaixiang HaoMurphy HentemannMitsunori KatoRobert KoenigLaura R LaBonteGang LiuShumei LiuChen LiuEric McNeillMorvarid MohseniMartin SendzikTravis StamsStan SpenceVictoriano TamezRitesh TichkuleChristopher TowlerHongyun WangPing WangSarah L WilliamsBing YuFrank C J M van Veggel
Published in: Journal of medicinal chemistry (2019)
Protein tyrosine phosphatase SHP2 is an oncoprotein associated with cancer as well as a potential immune modulator because of its role in the programmed cell death PD-L1/PD-1 pathway. In the preceding manuscript, we described the optimization of a fused, bicyclic screening hit for potency, selectivity, and physicochemical properties in order to further expand the chemical diversity of allosteric SHP2 inhibitors. In this manuscript, we describe the further expansion of our approach, morphing the fused, bicyclic system into a novel monocyclic pyrimidinone scaffold through our understanding of SAR and use of structure-based design. These studies led to the identification of SHP394 (1), an orally efficacious inhibitor of SHP2, with high lipophilic efficiency, improved potency, and enhanced pharmacokinetic properties. We also report other pyrimidinone analogues with favorable pharmacokinetic and potency profiles. Overall, this work improves upon our previously described allosteric inhibitors and exemplifies and extends the range of permissible chemical templates that inhibit SHP2 via the allosteric mechanism.
Keyphrases
  • small molecule
  • papillary thyroid
  • risk assessment
  • young adults
  • human health
  • amino acid
  • bioinformatics analysis