PMID: 20675137

Authors:

Sampognaro AJ, Wittman MD, Carboni JM, Chang C, Greer AF, Hurlburt WW, Sack JS, Vyas DM

Title:

Proline isosteres in a series of 2,4-disubstituted pyrrolo[1,2-f][1,2,4]triazine inhibitors of IGF-1R kinase and IR kinase.

Journal:

Bioorg Med Chem Lett. 2010 Sep 1;20(17):5027-30. Epub 2010 Jul 15.

Abstract:

Pyrrolidine, pyrrolidinone, carbocyclic, and acyclic groups were used as isosteric proline replacements in a series of insulin-like growth factor I receptor kinase/insulin receptor kinase inhibitors. Examples that were similar in potency to proline-containing reference compounds were shown to project a key fluoropyridine amide into a common space, while less potent compounds were not able to do so for reasons of stereochemistry or structural rigidity.