Increasing metabolic stability via the deuterium kinetic isotope effect: An example from a proline-amide-urea aminothiazole series of phosphatidylinositol-3 kinase alpha inhibitors.

Abstract:

:In vitro metabolic identification studies with a PI3K-α inhibitor lead molecule 1 identified a single predominant site of oxidative metabolism to be occurring within a tert.butyl moiety. Modification of the tert.butyl group within the lead molecule 1, to the corresponding d9-tert.butyl analogue 2, led to an increase in both the in vitro and in vivo metabolic stability. This increase in metabolic stability resulted in a 2-fold increase in the oral bioavailability measured in the rat, and a 3-fold increase in potency in a chronic in vivo study in the mouse, for 2 when compared to 1.

journal_name

Bioorg Med Chem Lett

authors

Fairhurst RA,Caravatti G,Guagnano V,Aichholz R,Blanz J,Blasco F,Wipfli P,Fritsch C,Maira SM,Schnell C,Seiler FH

doi

10.1016/j.bmcl.2016.08.041

subject

Has Abstract

pub_date

2016-10-01 00:00:00

pages

4729-4734

issue

19

eissn

0960-894X

issn

1464-3405

pii

S0960-894X(16)30862-9

journal_volume

26

pub_type

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