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Discovery and optimization of 2-(4-substituted-pyrrolo[2,3-b]pyridin-3-yl)methylene-4-hydroxybenzofuran-3(2H)-ones as potent and selective ATP-competitive inhibitors of the mammalian target of rapamycin (mTOR)

Journal Article · · Bioorg. Med. Chem. Lett.

We discovered 2-(4-substituted-pyrrolo[2,3-b]pyridin-3-yl)methylene-4-hydroxybenzofuran-3(2H)-ones as potent and selective ATP-competitive inhibitors of the mammalian target of rapamycin (mTOR). Since phenolic OH groups pose metabolic liability, one of the two hydroxyl groups was selectively removed. The SAR data showed the structural features necessary for subnanomolar inhibitory activity against mTOR kinase as well as selectivity over PI3K?. An X-ray co-crystal structure of one inhibitor with the mTOR-related PI3K? revealed the key hydrogen bonding interactions.

Research Organization:
Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
Sponsoring Organization:
USDOE
OSTI ID:
1002525
Journal Information:
Bioorg. Med. Chem. Lett., Journal Name: Bioorg. Med. Chem. Lett. Journal Issue: (7) ; 04, 2010 Vol. 20; ISSN 0960-894X
Country of Publication:
United States
Language:
ENGLISH