Abstract:
:The mechanistic target of rapamycin (mTOR) plays a pivotal role in growth and tumor progression and is an attractive target for cancer treatment. ATP-competitive mTOR kinase inhibitors (TORKi) have the potential to overcome limitations of rapamycin derivatives in a wide range of malignancies. Herein, we exploit a conformational restriction approach to explore a novel chemical space for the generation of TORKi. Structure-activity relationship (SAR) studies led to the identification of compound 12b with a ∼450-fold selectivity for mTOR over class I PI3K isoforms. Pharmacokinetic studies in male Sprague Dawley rats highlighted a good exposure after oral dosing and a minimum brain penetration. CYP450 reactive phenotyping pointed out the high metabolic stability of 12b. These results identify the tricyclic pyrimido-pyrrolo-oxazine moiety as a novel scaffold for the development of highly selective mTOR inhibitors for cancer treatment.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Borsari C,Rageot D,Dall'Asen A,Bohnacker T,Melone A,Sele AM,Jackson E,Langlois JB,Beaufils F,Hebeisen P,Fabbro D,Hillmann P,Wymann MPdoi
10.1021/acs.jmedchem.9b00972subject
Has Abstractpub_date
2019-09-26 00:00:00pages
8609-8630issue
18eissn
0022-2623issn
1520-4804journal_volume
62pub_type
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