Aprile S, Colombo G, Serafini M, Di Paola R, Pisati F, Bhela IP, Cuzzocrea S, Grosa G, Pirali T. An Unexpected Deuterium-Induced Metabolic Switch in Doxophylline.
ACS Med Chem Lett 2022;
13:1278-1285. [PMID:
35978700 PMCID:
PMC9377007 DOI:
10.1021/acsmedchemlett.2c00166]
[Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/11/2022] [Indexed: 01/03/2023] Open
Abstract
Precision deuteration has become part of the medicinal chemist's toolbox, but its usefulness can be undermined by unpredictable metabolic switch effects. Herein we report the deuteration of doxophylline, a drug used in the treatment of asthma and COPD that undergoes extensive oxidative metabolism. Labeling of the main metabolic soft spots triggered an unexpected multidirectional metabolic switch that, while not improving the pharmacokinetic parameters, changed the metabolic scenario and, in turn, the pharmacodynamic features in two murine models of lung injury.
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