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US 2025/0084102 A1Published application
Process for the preparation of 7-(4,7-diazaspiro[2.5]octan-7-yl)-2-(2,8-dimethylimidazo[1,2-b]pyridazin-6-yl)pyrido[1,2-a]pyrimidin-4-one derivatives
AssigneeHoffmann-La Roche Inc.
InventorsJean-Michel ADAM, Serena Maria FANTASIA, Daniel Vincent FISHLOCK, Fabienne HOFFMANN-EMERY, Gerard MOINE, Christophe PFLEGER, Christian MOESSNER
Life of this patent
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Abstract
The present invention relates to a process for the preparation of 7-(4,7-diazaspiro[2.5]octan-7-yl)-2-(2,8-dimethylimidazo[1,2-b]pyridazin-6-yl)pyrido[1,2-a]pyrimidin-4-one derivatives useful as pharmaceutically active compounds.
Claims21
1-22. (canceled)
A compound of formula (III):
- wherein X is selected from an alkyl, aryl sulfonate, fluorinated alkyl, fluorinated aryl sulfonate and halide.
A compound of formula (IV):
Dependencies are inferred from the claim text.