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Interspecies in vitro metabolism of the phosphodiesterase-4 (PDE4) inhibitor L-454,560 by Kevin P. Bateman; Laird Trimble; Nathalie Chauret; Jose Silva; Stephen Day; Dwight Macdonald; Daniel Dube; Michel Gallant; Anthony Mastracchio; Helene Perrier; Yves Girard; Deborah Nicoll-Griffith is a Chemistry article available to read on EtoBox.

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## Abstract L‐454,560 is a potent phospodiesterase 4 (PDE4) inhibitor which was identified as a development candidate for the treatment of asthma and chronic obstructive pulmonary disease (COPD). As part of the discovery of this compound, interspecies __in vitro__ metabolism data was generated using liver microsomes and hepatocytes in order to understand the metabolic fate of the compound. In microsomes, metabolism of the 3‐methyl‐1,2,4‐oxadiazole ring was the predominant pathway observed, including ring cleavage. In rat hepatocytes, hydroxylation of the methyl group on the oxadiazole ring and double‐bond isomerization were the most abundant metabolites observed. No major species differences were found in terms of microsomal metabolite profiles. The use of LC with UV and MS detection is highlighted, as well as information from tandem mass spectrometry and NMR. Copyright © 2006 John Wiley & Sons, Ltd.

Who reads Interspecies in vitro metabolism of the phosphodiesterase-4 (PDE4) inhibitor L-454,560?

Author

Kevin P. Bateman; Laird Trimble; Nathalie Chauret; Jose Silva; Stephen Day; Dwight Macdonald; Daniel Dube; Michel Gallant; Anthony Mastracchio; Helene Perrier; Yves Girard; Deborah Nicoll-Griffith

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley-Liss Inc; John Wiley & Sons Inc.; Wiley; Heyden And Son (ISSN 1076-5174)

Published

2006

Language

EN

Field

Chemistry (Physical Sciences)