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US 6,958,417 B2Granted
Process for preparing zolpidem
AssigneeBoehringer Ingelheim Pharma GmbH & Co. KG
InventorsMarkus Sauter, Wolfgang Wohlleben
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Abstract
A process for preparing a compound of formula (II) wherein R1 denotes bromine, wherein, a compound of formula (IV) is reacted with elemental bromine in a diluent.
Claims2
A process for making the compound of formula (II)
- wherein
- R1 denotes bromine,
- wherein,
- the compound of the formula (IV)
- is reacted with elemental bromine in a diluent.
2 more elements
Dependencies are inferred from the claim text.